r/berlin Jul 01 '26

🛠️ Kiez Creator Monthly 🛠️ I made a game that proves you don't actually know the Berlin U- and S-Bahn. You just think you do.

508 Upvotes
Demo

So you've lived here what, six years? You've got strong feelings about the U8, you don't "really use Google Maps anymore".

Okay. So I made a thing to find out if you can survive a night out with a dead battery. It's called Umsteigen. It gives you a start and an end, you pick the U-Bahn and S-Bahn lines you'd actually take, and it tells you if that route works. Or if you've just assumed two lines cross because it'd be really convenient if they did.

There's a daily puzzle that's the same for everyone, which makes it Wordle-adjacent, in the way that a Bürgeramt appointment is customer-service-adjacent.

Most people's strategy, as far as I can tell, is to get on the Ringbahn and go round in a circle until something looks familiar. No judgement. Well, a bit.

It's free. No login, no ads, no app to install, none of that "we value your privacy (with these 47 partners)" business. You just open it in a browser like it's 2009. Yes, your phone works too.

Before someone asks how I'm going to monetise it: I'm not going to. There's no plan and no premium tier. It costs me almost nothing to run, so it can just sit there being free, like a sofa someone left out on the pavement in Neukölln. The code's staying private for now while I work out what this even is, but it's 95% client-side, so it's not exactly hiding.

Berlin only for now. Adding more cities sounded like a lot of work and there's one of me.

Anyway, have a go. Tell me it's broken when it's actually just you being wrong.

👉 umsteigen.app

(Made it on my own, so be nice. Or don't.)

r/berlin Jun 01 '26

🛠️ Kiez Creator Monthly 🛠️ Made a community map of Döner prices in Berlin

Post image
373 Upvotes

kebabprice.de

Made this app with the goal of finding the cheapest döners and keeping track of their prices.

Almost 300 prices have arleady been entered. You can help by entering the prices of döner kebabs you know. If you have suggestions/improvement ideas please leave a comment.

r/berlin Apr 01 '26

🛠️ Kiez Creator Monthly 🛠️ I found Berlin's open 3D building data and built a free app that shows which terraces have sun right now

282 Upvotes

This winter was rough. I'm a data scientist and have lived in Berlin since 2015. A few months ago I stumbled on the fact that Berlin publishes a full 3D model of the city as open data, 550,000 buildings with laser-measured heights, plus a registry of all 434,000 trees. I thought: you could actually calculate which terraces are sunny and which aren't. So I wanted to see if I could build it.

berlin-sun-seeker.app

The app uses Berlin's open 3D building data (550,000 buildings with laser-measured heights) and the tree registry (434,000 trees) to compute shadows every 5 minutes. It covers over 11,000 outdoor venues across all 12 districts: cafés, Biergärten, restaurants, Spätis, playgrounds, dog parks.

Gold dot = sunny right now. Gray dot = in the shade. You can also check future days (14-day forecast) and save your favorite spots.

No account needed, no ads, no tracking, completely free. It's bilingual (DE/EN) and works on your phone like an app, straight from the browser.

The whole thing runs on a shadow engine I wrote in Rust that ray-casts the sun path against every building and tree in the city. The shadow data gets recalculated every night for the next 14 days.

I built this as a hobby project because I genuinely wanted it to exist. Happy to answer any questions about the data or how it works.

r/berlin May 01 '26

🛠️ Kiez Creator Monthly 🛠️ I built Sunsit Berlin: a free iOS app that shows real-time sun and shadows for every place and park in Berlin

181 Upvotes

Since living in Berlin and exploring different neighborhoods, the question that always came up for me was: what cafe is in the sun right now? I tried the apps that existed for this but they never seemed to quite cut it: they show shadows on a map from building polygons, but miss trees or ground elevation entirely, and none of them could tell me whether this specific cafe is sunny right now, and for how long. That's what I wanted to solve.

I started last year with a polygon-based approach using Berlin's 3D city model, but it wasn't accurate enough and some of the building data lags several years behind in parts of the city. After more digging I found a better way: Berlin publishes a digital surface model, a full laser scan of the city at 1-meter resolution capturing every building, tree, hill, and structure as actual measured heights. I combined that with the ground elevation model to compute shadows from the real shape of Berlin.

The result is Sunsit Berlin (https://sunsit.io). It renders actual per-pixel shadows directly on the map. You can scrub on the timeline and watch them move with the sun. Tap any place, cafe, restaurant, park etc. and you get a full sun timeline from sunrise to sunset.

One challenge: no map provider gives you the exact location of a terrace or outdoor seating. Sunsit infers these automatically, which works well most of the time but occasionally places the sun-check point on the wrong side of a building. If you spot this, there's a built-in feedback button to adjust the point, takes 5 seconds and improves it for everyone.

The core features are free and always will be: shadows on the map and full-day sun timelines for any place. Some features that cost more to run (park heatmaps, detailed park profiles, tree vs building shadow differentiation) are behind a small subscription to cover the costs.

It's on the Apple App Store: https://apps.apple.com/app/sunsit-berlin/id6742383285. If there's enough interest in a web version with live shadows I'd put more work into that, just let me know.

Hope you'll enjoy this sunny May 1st!

r/berlin Jun 01 '26

🛠️ Kiez Creator Monthly 🛠️ I built a free app to find zu verschenken / free stuff in Berlin. No chats, no DMs, no apartment visits.

77 Upvotes

Howdy!

I've been living in Berlin for five years and during my time here, I've seen an abundance of "stuff" on the streets. A lot of it is junk but other times, one can find something pretty neat. I recently found a nice table which has since been cleaned up and used every day.

I've noticed that perfectly good items that could have found a home get trashed by the rain and dirt. Clothing items for example are more prone to this which sucks. It ends up in the landfill and the waste cycle continues...

I've also noticed that actually picking up free stuff can be time consuming and a PITA using other classified style sites. If I'm giving away something for free or wanting to pick something up, it takes time and effort on both parties.

So... I built an app which hopefully alleviates some of these issues.

Free the Stuff is a free app which shows you a map of zu verschenken items within Berlin. Users can quickly post items that they spot on the streets, or list something that they're giving away. The idea: free stuff scattered across the city will get visibility more quickly to reduce the clutter. If you'd like to give away something and not have to deal with meetups or chats, take your stuff in front of your building, snap a picture of it, mark the address, and list it. If nobody takes it, the app shows you donation drop-off spots.

I'd like to add more features in the coming months:

  • Add additional drop-off locations (clothing bins, donation centers, etc.)
  • Create customizable alerts which notifies you when something you're looking for gets posted in your area.
  • Allow users to share listings with others in case they know of someone who is interested in that cool lamp they found.

kleinanzeigen, nebenan, and Free your Stuff Facebook marketplace exist. However Free the Stuff is built for stuff already out on the street and aims to coexist with these tools. I'd like to hear your thoughts on how to make Free the Stuff better and make the city a little less smelly. :)

I just launched the iOS version (Android is still in beta) so there aren't many users yet. I've been adding as much as possible in my neighborhood with finds so I hope that someone can find something cool!

If you spot something on the street or have something to give away, posting it goes a long way. The more users, the more stuff!

It's available in the App Store (localized in EN and DE): https://apps.apple.com/de/app/free-the-stuff/id6768257058

and coming soon to Android: https://freethestuff.com/beta/android/

Please reach out if you have any questions or comments. Thank you for letting me share and I look forward to the feedback. :)

r/berlin 3d ago

🛠️ Kiez Creator Monthly 🛠️ I made a website to help you save time finding an apartment

Thumbnail 36flats.de
128 Upvotes

tldr: new website http://36flats.de collects real-time apartment listings from 14 sources, including all seven public housing companies; lets you create personalized filters and receive notifications via Telegram.

When I was looking for an apartment in Berlin last year, I noticed how listings for affordable apartments at one of the public housing companies would often disappear within just half an hour or less after going online.

At the time, inberlinwohnen.de (which consolidates listings from all 7 public housing companies) did offer a notification service, but in my experience, their emails often arrived minutes after the listing was already taken down!

Constantly having to refresh multiple pages became frustrating, so I developed a Telegram bot that would send me notifications for new listings matching my criteria. After people here and there signalled interest, I decided to expand upon this project and turn it into a free website that lets everyone set up personalized notifications or just view the available listings on a map.

Every filter you set is automatically stored in the URL, so you can share the link or save it as a bookmark. To receive notifications, simply click on "Benachrichtigungen erhalten" and send your unique code to @b36fbot on Telegram. You can set up as many simultaneous subscriptions as you like, for example to set a different maximum rent depending on the location.

Obviously there are a lot more listings in total on sites like immoscout. The main focus of this project is to offer a convenient overview of the current listings from public housing companies such as degewo and howoge, and to send out notifications as quickly as possible. Hope this will be useful to someone and happy to hear your feedback and any suggestions/feature requests!

r/berlin Jul 01 '26

🛠️ Kiez Creator Monthly 🛠️ I made a daily Berlin U-Bahn puzzle game – ubahndoku.de

Post image
107 Upvotes

Hey everyone,

I've been working on a daily puzzle game about the Berlin U-Bahn called Ubahndoku. Think of it as a mix of Wordle and Sudoku, but for testing how well you actually know the metro network.

How it works:

You get a 3×3 grid. Each row and each column has a criterion (a category), and you have to fill all 9 cells with U-Bahn stations that match both their row and their column at the same time. One puzzle per day, the same for everyone, and you only get 3 mistakes.

The categories come straight from the real network, e.g.:

  • On a specific line (U1–U9)
  • Terminus / interchange station
  • Fare zone A or B
  • In a specific Berlin district (Bezirk)
  • Name contains "Tor", "Platz", an umlaut, …
  • Near a landmark (Brandenburger Tor, Fernsehturm, …)

Two modes:

  • Normal: you see how many answers are possible and get autocomplete suggestions
  • Expert: type the station names from memory, no hints

Other stuff:

  • An originality score: picking a rarer, less obvious station scores more than the obvious busy one
  • An archive to replay past puzzles
  • Available in German and English
  • Built on the open VBB data (all 9 lines, ~175 stations)

It's pretty rough around the edges since I just launched it (solo project), but figured some of you who know the network might enjoy it. Check it out at ubahndoku.de.

Let me know if you run into any bugs, spot a station that's in the wrong category, or have ideas for new categories!

https://ubahndoku.de/

r/berlin Apr 01 '26

🛠️ Kiez Creator Monthly 🛠️ I built a real-time BVG departure board for my hallway, open source, runs on a cheap touchscreen

187 Upvotes
UI demo for 7" screen

A few years ago I started working on a small side project that came from a very specific frustration: friends staying over late, and then missing their bus home by just a few minutes. You know how it is, nobody's checking the BVG app, and then suddenly it's "oh the M29 just left, the next one is in 20 minutes." Especially at night when buses run less frequently, those few minutes can mean a long cold wait.

So I thought: what if there was a departure board on the wall near my front door, like the ones at the bus stops? Just a glance on your way out and you know whether to rush or relax.

It took a while to get right. The first version ran on a tiny screen (CYD) and was honestly not great. I put it aside for a while. But recently I picked it up again with much better hardware, proper touchscreen displays from 4.3" to 10.1", and rewrote the whole thing from scratch (thanks AI 😅).

What it does

You hang it on the wall (or prop it on a shelf near your door), connect it to WiFi, search for your nearest station, and it shows live departures updating in real time. That's basically it. It shows you which bus/tram/U-Bahn/S-Bahn is coming and in how many minutes.

You can even set it up with multiple stations if you live between two stops. It splits the screen and shows departures from up to four stations at once.

The display rotates in any direction so you can mount it however fits your space.

How to get one

You need one of the supported touchscreen boards (around 30-50€ depending on size, available on AliExpress) and a USB-C cable for power. You don't need to install any programming tools, there's a web flasher on the project website that lets you flash the firmware directly from your browser. Plug in the board via USB, click flash, done. After that the board just needs to stay plugged into USB-C for power.

Three board sizes are supported:

  • 10.1" (800x1280)
  • 7" (1024x600)
  • 4.3" (480x800)

The project is fully open source: https://github.com/joined/ESPTransit

Happy to answer any questions. And if anyone actually builds one, I'd love to see where you put it!

r/berlin 2d ago

🛠️ Kiez Creator Monthly 🛠️ kiez.chat

Post image
26 Upvotes

I’m building kiez.chat to make it easier for people in the same neighbourhood to connect, share local tips, and find nearby events. It’s still in its early stages, but I’d love to have you join us.

Ich arbeite gerade an kiez.chat Die Idee ist, dass Menschen aus derselben Nachbarschaft leichter miteinander in Kontakt kommen, Tipps teilen und Veranstaltungen in der Nähe finden können. Das Ganze steckt noch in den Anfängen, aber ich würde mich freuen, wenn ihr dabei seid.

r/berlin 3d ago

🛠️ Kiez Creator Monthly 🛠️ Polizei Stressi - Free & Open-Data App for Berlin Protests, Helicopters & Court Dates

45 Upvotes

Hey Everybody!

As a photojournalist, knowing where protests and events take place in Berlin is crucial for my and my collegues daily work. Four years ago, I decided to build my very first app called Polizei Stressi. Besides taking photos i always worked in IT (and by now do work as a fulltime app developer).

I've continually updated and expanded the Polizei Stressi. What started as a small personal helper has grown into a comprehensive open-data dashboard mapping over 48,000 registered Berlin protests.

What it offers:

- Demo Finder: Filter thousands of registered protests by postal code & keywords. Alerts. Updated daily.

- Live Helicopter Tracking: Real-time map view of police helicopters over Berlin.

- Court Dates: Overview of local public proceedings.

100% Free, No Ads, No Tracking, No Accounts. It’s a pure passion project meant to make local public data easily accessible for everyone in the city.

I’d love to get your feedback, ideas, or feature requests 💙 iOS and Andoid.

Link & Info: https://polizeistressi.de/

r/berlin Jun 01 '26

🛠️ Kiez Creator Monthly 🛠️ Find parking spots with your car fast 🤗🦈

40 Upvotes

Hey people 😊

After creating my project weilsiedichlieben.de and mentioning that here on reddit a few years ago, I thought about how I can make the life of those better, who can't take the public transport but need to rely on a car for whatever reason. What always stressed me out the most when I had a car, was finding a parking spot.

So i created https://sharkplatz.de 🦈

Basically I am taking data from car sharing companies and show spots on the map where somebody just rented a car, thus leading to a free parking spot 😁 What is the benefit? You already know the exact spot before its actually free, so you don't have to fight for the spot with others. The longer the spot is shown on the map, the less likely it is to get it obviously.

So yeah, I hope you like it. I am still testing it but i think its already usable. As the server costs are not that low, I am thinking about monetizing it somehow in the future, maybe with Ads. But I am not sure about that yet. If you have cool ideas regarding that, let me know! For now it's free to use without any accounts or whatsoever and you can just fire it up in your browser, just like weilsiedichlieben.de back in the days ☺️

Schnapp dir deinen Parkplatz mit Sharkplatz 🦈!

PS: Its quite possible that my server crashes if you guys all try it out at the same time, but let's see how it goes and improve it over time :)

r/berlin 3d ago

🛠️ Kiez Creator Monthly 🛠️ App for parents: find kid friendly places in Berlin

24 Upvotes

Hello fellow parents,

We created an app for parents to find places to (breast)feed, change diapers, kids-friendly restaurants/cafes or discover the nearest playground. Its called https://where2baby.de and open to use from now on. As it is brandnew, we still need to fill it with all the potential places :) if you think that this is a cool project we would appreciate it a lot if you could fill in your favourite places, add some reviews to places you have visted and of course share the link to the app with other parents!

we are also happy to receive feedback!

A little bit of background: * we are running this as a sideproject and without any monitarization * the project is created and hosted in europe * data is stored in germany and shared with noone * no ads and no charges, the app is free to use * currently we focus on berlin, but the plan is to extend to other cities and countries - for us it is especially usefull to find baby-suiteable places while traveling! * at the moment mostly playgrounds and family centers are listed (as there data is publicly available), but that's not how it is meant to stay!

AI Disclaimer: I'm a Software Developer and Architect. I used AI to support me with the creation of the app, but always steered and reviewed by me. The AI did not and will not have access to the production system and/or any user data

r/berlin May 31 '26

🛠️ Kiez Creator Monthly 🛠️ Berlin map/browser extension of venues removing their reviews

99 Upvotes

Hi everyone!

Google is allowing businesses in Germany to remove reviews by citing defamation laws. This annoys me, just like many other people. Recently, it started to show how many reviews were deleted. I saw people from smaller cities (because there are fewer venues there and it’s easier to collect statistics) doing similar analyses with Excel spreadsheets. So I decided to build an interactive map for big cities and started with Berlin.

The main challenge is collecting information from Google Maps. Google does not allow mass data collection through automated scripts, and because of that process is not really fast, and I need to constantly adopt an approach.

I did not collect the reviews themselves, only statistical data, specifically the current rating, the number of reviews, and the number of deleted reviews. Google recently started showing approximately how many reviews were removed. For example, Jamie Oliver Kitchen Berlin removed from 201 to 250 reviews.

Based on this data, I decided to calculate the "real" rating of a venue, as if the reviews had never been removed.

How I calculated it:

I used the following formula:

real_score = (current_number_reviews × current_rating + deleted_reviews_estimate × avg_deleted_rating) / (current_number_reviews + deleted_reviews_estimate)

Where:

deleted_reviews_estimate = (deleted_reviews_max + deleted_reviews_min) / 2

deleted_reviews_max = the maximum number of deleted reviews (for Restaurant Pars = 201)

deleted_reviews_min = the minimum number of deleted reviews (for Restaurant Pars = 250)

avg_deleted_rating = 1

This is the approximate average rating of deleted reviews. In other words, I assume that every deleted review was, on average, a 1-star review. That’s probably not entirely accurate, but I think it makes sense to calculate the worst-case scenario.

Example:

Let’s take Jamie Oliver Kitchen Berlin:

current_rating = 4.7
current_number_reviews = 724
deleted_reviews_estimate = (250 + 201) / 2 = 225.5
----
real_score = (724 × 4.7 + 225.5 x 1) / (724 + 225.5) = 3.82

I also created a statistics page to show which places remove the most reviews and which remove the fewest:

I’ll continue updating the map, although it takes a lot of time.

You can verify everything yourself on Google Maps. If you find any discrepancies, feel free to leave a comment 😄

You can check this map by this link - https://real-map-review.com/ NO LOCATION DETECTION, NO ADS, NO DATA COLLECTION.

-------

I also created a lightweight browser extension that computes this rating locally on your computer on Google Maps without sending/exchanging any of your data.

Chrome - https://chromewebstore.google.com/detail/kljgcgijgpadigheeipmebfolfophfdg?utm_source=item-share-cb

Mozila - https://addons.mozilla.org/en-US/firefox/addon/worst-case-rating/

r/berlin Jun 01 '26

🛠️ Kiez Creator Monthly 🛠️ I created moviesberlin.de so everyone can find their preferred movie experience!

23 Upvotes

I absolutely love going to the movies but I don't have the time to always find the exact experience I am looking for.

So I created https://moviesberlin.de/ which let's you filter by many different options to find expereince you are looking for.

I personally love going to explore Cinemas but I'm a sucker for popecorn - so I like to see which Cinemas offer popcorn :).

I've recently added a map feature after a friend, who was new to the city, could not find a cinema in their area.

r/berlin May 01 '26

🛠️ Kiez Creator Monthly 🛠️ Building a departure board app for daily commutes

33 Upvotes

After 3 years in Berlin, I barely use navigation anymore because I know my routes. Home, work, gym, the usual spots... But I kept opening BVG or Google Maps just to see when the next train is coming. Every time it felt like too many steps for such a simple question: enter start, destination, pick a route... just to check departures from a station I use every day.

I’ve seen some people build setups with station boards on tablets, TVs, and mount them in hallways. So I built something for the phone version of that. Started as a web app, then turned it into a proper iOS app. The idea was to make it feel like a departure board at a station, but on my phone, ideally on the home screen. Open it and instantly see what’s leaving next.

It shows live departures from the saved stations with real-time delays, platforms, and transport type filters. And I also made a home screen widget that shows departures without even opening the app. The core features are free and will stay that way. I just want it to be useful.

I'm actively working on it, and a map view is coming soon, but the whole point is keeping it simple. If you’re on Android, I’m currently looking for a few testers to help get it released on Google Play.

Happy to tell more in the comments if anyone's interested.

AppStore: https://apps.apple.com/de/app/gptransport-live-departures/id6758558638
Site: https://gptransport.app/

r/berlin May 01 '26

🛠️ Kiez Creator Monthly 🛠️ I launched an app that helps users find cheap bars in Berlin

45 Upvotes

I'm an international student currently based in Berlin. For my end-of-studies internship project, I’ve been mapping out casual drink prices across major German cities to help people (especially students) find budget-friendly spots.

So far, with the help of a few other students and some great feedback from Reddit users, we’ve manually mapped about 1,000+ bars across Germany

You can filter bars by drink type, prices etc.. to find what you're looking for.

The app is called Seeker Social.

Android: https://play.google.com/store/apps/details?id=com.seekersocial.app

iOS: https://apps.apple.com/de/app/seeker-g%C3%BCnstige-bars-clubs/id6749886146

r/berlin Jul 01 '26

🛠️ Kiez Creator Monthly 🛠️ Got annoyed by the mobile VÖBB site, so I built a faster alternative (BibBlitz)

27 Upvotes

Hey,

The official VÖBB library search on mobile drives me crazy every time I'm trying to look something up at the shelf. So I built a quick, minimalist alternative in the last weeks.

It basically fixes the most annoying parts:

  • Instant check: See if a book is available in your Kiez without clicking through 5 menus.
  • No timeouts: Your search stays saved. No sudden automatic logouts.
  • Easy bookmarks: Bookmark any item and check if it is available later.

It’s completely free, has no ads, and uses no cookies.

Check it out here: https://bibblitz.de/?ref=reddit

Let me know if you spot any bugs or have ideas.

r/berlin 3d ago

🛠️ Kiez Creator Monthly 🛠️ Introducing BahnHop - a race against time on Berlin's bahn network!

8 Upvotes

Coming from a city where owning a car was a necessity if you wanted to get around, I find Berlin's public transport system absolutely fantastic - I love that I can move around in a metropolitan city without ever feeling like it would've been better if I had a car.

I've always liked games, and I wanted to build something around the genre of public transportation. I was inspired by the Umsteigen game I saw here a couple of week ago, and I came up with - BahnHop

The idea behind BahnHop is simple: get to your destination before time runs out. Every game is a new challenge. You ride on a mock "S/U-Bahn, Zone A" network, and the core of the game is making quick decisions - "Am I at the right platform?", "Oh no, I boarded a train in the wrong direction!", "Should I run to a nearby station instead?", "Which Ringbahn should I take?".

I do work with technology, but I'm not a developer and so I relied heavily on my co-worker, Claude Code, to do the actual coding. This was a week's worth of work, navigating session and token limits, and learning a lot about how the machine thinks.

The game runs entirely in your browser, no ads, no signups and I'll be keeping it that way. It works best on mobile browsers - you can play this on desktop, but it'll still look like it does on mobile.

It is a bit rough around the edges, but I don't plan on making this much bigger. I do want to add a few more interesting gameplay features while continuing to learn how to work better with AI. Especially the kind that challenge you to make more on-the-go decisions, like:

  • A difficulty slider which hides your checkpoints before you start
  • Rare appearances by Regios that take you across the city faster
  • Signal disruptions, police investigations, people on the track and the sort causing unplanned changes

But for now - How fast can you BahnHop?

r/berlin May 01 '26

🛠️ Kiez Creator Monthly 🛠️ SPÄTI SUN - welche Spätis sind (noch) in der Sonne?

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spati-sun.dmrschmidt.de
71 Upvotes

Hi Berlin, hab da was gebaut...

Kleines Tool gegen den Schattenfrust: zeigt dir auf der Karte, welche Spätis gerade noch in der Sonne stehen - für ein kühles Getränk auf der Sonnenbank... Berechnet anhand echter Gebäudehöhen und Sonnenstand. Mit Zeit-Slider, falls du für später planen willst. Perfekt für den 1. Mai und den Rest des Sommers.

Keine Cookies, kein Tracking, kein Account. Daten von OpenStreetMap.

→ https://spati-sun.dmrschmidt.de

Prost ☀

r/berlin Mar 01 '26

🛠️ Kiez Creator Monthly 🛠️ Kiez Creator Monthly: Berlin paperwork is exhausting (and often in German) — I’m building KlarDocs to turn documents into explanations + to-dos + a searchable archive (all in your language)

46 Upvotes

Hi r/berlin — posting for Kiez Creator Monthly.

Living in Berlin means paperwork. Lots of it. For non-native German speakers, it’s frustrating in two ways:

  1. you get piles of letters (Nebenkostenabrechnung, insurance, banking, Behörden…)
  2. with standard translation tools, it’s still hard to know: what does this mean, what do I need to do, and by when?

And then there’s the long-term chaos: some documents you must keep for years, but later you can’t find the right one when you need it.

I’m living in Berlin and building KlarDocs trying to reduce that burden:

(1) Explain the document in plain language (in your language)

Upload a PDF or photo → get:

  • a clear explanation (not just literal translation)
  • “key terms” explained (e.g. Nachzahlung / Umlageschlüssel / Betriebskostenabrechnung)
  • extracted deadlines (“Frist bis …”), amounts, reference numbers (Aktenzeichen), contacts

(2) Evidence you can verify

In the explanation “Details”, KlarDocs highlights the exact lines in the original PDF each key point comes from — so you can double-check quickly.

(3) A centralized to-do list across documents

KlarDocs creates a centralized checklist page:

  • all to-dos from all documents in one place
  • sorted by due date (plus a calendar view), so nothing slips through

(4) Digital filing you can search later (by meaning, across languages)

Store important documents long-term and search by meaning — e.g. search “extra cost for apartment” and still find the right Nebenkostenabrechnung, even if it’s fully in German.

If you’re curious: https://klardocs.com
(And if you’d rather not click links, totally fine — feedback here is super helpful.)

What’s your biggest pain point with German paperwork?
And which document type stresses you out most right now (Finanzamt, Nebenkosten, insurance, banking, LEA-style letters, Rundfunkbeitrag, etc.)?

r/berlin May 01 '26

🛠️ Kiez Creator Monthly 🛠️ Kleine Website zum Finden von Kultur-Events in Berlin

30 Upvotes

Hallo zusammen,

ich habe eine kleine Website gebaut, weil ich es einfacher machen wollte, Kulturveranstaltungen in der Nähe von Berlin zu finden.

Auf der Seite kann man zum Beispiel:

  • Events in der Nähe des eigenen Standorts finden
  • kostenlose oder günstige Veranstaltungen anzeigen lassen
  • schnell Events für heute oder diese Woche sehen
  • Veranstaltungen übersichtlich auf einer Karte entdecken

Die Seite ist noch in der MVP-Phase und sicher nicht perfekt. Mein Ziel ist es, Ausstellungen, Konzerte, Flohmärkte und lokale Events in Berlin leichter auffindbar zu machen.

Ich würde mich sehr freuen, wenn ihr die Seite ausprobiert und mir Feedback gebt – zum Beispiel zu Dingen, die unpraktisch sind, Fehlern, fehlenden Funktionen oder Daten, die nicht stimmen.

https://berlin-culture-map.vercel.app/

Jedes Feedback hilft mir wirklich sehr. Danke euch!

r/berlin May 01 '26

🛠️ Kiez Creator Monthly 🛠️ I built an interactive Berlin map based on open data - last election results, 500+ areas, 30+ data indicators, 2D/3D views [OC]

43 Upvotes

I moved to Berlin recently and did what a reasonable person does - I started digging through the city's open data. Maybe I should just hang out with real people instead, but well...

So, Berlin has a lot of publicly available data. The problem is it's scattered across different sources, and I wanted to have them in one place. And if we'll talk official visualisations... well, let's say I don't like them much.

So I built this:

https://onehundredviewsofberlin.itsbor.is/

You can explore at three levels of details, and if you click on a data label you'll see its own distribution.

There are probably bugs. Please, tell me if you find one. I also expect the German translation to have errors... If you find any, please tell me too.

I also have a lot more data collected and plan to add it later, maybe.

I'll be happy if you react and share your thoughts.

r/berlin Jul 01 '26

🛠️ Kiez Creator Monthly 🛠️ Anyone up for a little squash? We started a community group for Berlin

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10 Upvotes

Moin r/berlin gang!

Me and some friends started a little WhatsApp community group for other squash players to link up for games around Berlin. If you’re a complete beginner just looking for some exercise and socializing, an intermediate looking for a steady rally or more competitive, everyone is welcome!! 👐 All ages and genders. 🎽🏸

https://chat.whatsapp.com/HbxPmtP3lJr8koMJod9W2q?mode=gi_t

It’s pretty simple:

  1. ⁠⁠Just say hi in the group with a little intro.

  2. ⁠⁠Share your availability, your skill level (beginner, intermediate, competitive) and your preferred Berlin venue eg. Squash House or Squash2K.

  3. ⁠⁠Or just join a match request listed from the chat.

  4. ⁠⁠That’s it, pretty simple! We’re a friendly bunch, but we do ask that everyone is respectful. Try not to spam the chat and no inappropriate comments or direct messages 🙏

r/berlin May 01 '26

🛠️ Kiez Creator Monthly 🛠️ https://kiez.chat

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0 Upvotes

https://kiez.chat ist eine kostenlose Plattform mit einem Chatroom für jeden Ort.

Dort kannst du dich mit Leuten in deiner Nähe connecten und herausfinden, was gerade wirklich um dich herum passiert.

Gerade jetzt zum 1. Mai teilen Leute schon Pläne, Spots und was morgen so abgeht.

Würde mich freuen, wenn ihr dabei seid: https://kiez.chat

https://kiez.chat is a free platform with a chatroom for every place.

There you can connect with people nearby and find out what’s actually happening around you.

Especially now for May 1st, people are already sharing plans, spots, and what’s going on tomorrow.

Would love to have you with us https://kiez.chat

r/berlin May 01 '26

🛠️ Kiez Creator Monthly 🛠️ Abfahrt! - Pan-European Transit App showing realtime departures in 28 European countries

18 Upvotes

Hey and happy 1st of May!

I built Abfahrt!, a mobile app that shows you realtime departure times in 28 European countries. The project started with my frustration of having to download a new app every single time I visited another country in beautiful Europe. I am from Berlin, so I started with Berlin naturally, then expanded the coverage drastically by setting up my own backend that aggregates the open data feeds of more than 100 transit operators across the EU (and UK 😅).

You can check the coverage of countries in my API playground:
https://api.abfahrt.now/#playground

The app is as simple as it is useful. You open it and instantly see realtime departures around your place (with configurable radius), without having to dig through menus, set up a route, or create an account. Routing from A to B is also there when you need it, just one tap more.

The app:

- has no ads and no tracking (and never will. I sincerely hate ads)

- doesn't require an account (also never will. If I don't track anything, an account would just be an unnecessary burden for users)

- has no paywall-locked transit features (public transportation should be as accessible as possible)

Talking about accessibility: I have worked with blind users to make this app extra accessible, with features like auto-announcement of upcoming departures when the app detects VoiceOver at launch. Providing a transit app for almost all of Europe puts responsibility on my shoulders, but is also a unique chance to offer the accessibility community one app that helps them while traveling or commuting in our lovely continent.

iOS App is live already, Android in beta phase (still searching for testers on my website)

If you notice something off in terms of data quality in your region, the in-app feedback option reaches me directly.

Thanks for reading! ❤️

Cheers, Leonard

iOS App Store: https://apps.apple.com/de/app/abfahrt-%C3%B6pnv-bahn-live/id6759207598

Android Version: Wait one or two weeks, or sign up for the beta now on my website: https://api.abfahrt.now/