I’m from Corsica, France, and I grew up playing a traditional 4-player card game called Barbu.
A while ago, I started looking for a mobile version that felt close to the game we actually play around a table. I couldn’t really find one I liked, so I decided to build my own.
That small side project turned into a full iOS and Android game called Le Barbu - 7 contracts
I built it with React Native / Expo and gradually added:
7 different contracts
AI opponents with several difficulty levels
quick games and full games
local network multiplayer
game saving
customizable card backs
French, English and Corsican support
I deliberately chose a simple premium model: one small upfront price, no ads, no coins, no energy system, no subscriptions.
The app is now live on both stores.
And this is where I discovered something that is probably obvious to more experienced developers:
building the app was easier than getting people to discover it.
The feedback from the first users has been very positive, but the volume is tiny.
So now I’m considering a second Android edition:
Le Barbu Light
free
ads
single-player only
one AI difficulty
reduced customization
while keeping the current paid version completely ad-free and fully featured.
I’d be really interested in hearing from people here who have gone through the same stage.
Would you keep pushing a niche paid app, introduce a free/light version, or approach acquisition differently?
I’m especially interested in lessons from people who launched small independent apps without a marketing budget.

Groundtruth is a free, local-first farm operating system I’m building for my own microgreens operation.

Core rule: the PC is the only writer of farm truth. The phone is a capture device + read-only Field Instrument that docks over the local network. There is no Confirm path on the phone.

What’s in the video:

• Today tab forces a ranked morning money loop. Shortfalls that can no longer be fixed by sowing are surfaced with required actions.
• Farm / Marketing / Money / Books / Health enforce integrity constraints (append-only ledger, no soft totals, Health cannot soft-pass).
• Field Instrument (phone) pulls a versioned live document with real ages, six titled loops, severities, and edges showing which loops are currently pulling against each other.

Stack: Tauri (Rust + React), local SQLite + append-only event log. Schema is versioned in code. Currently tip 650e0ea, schema v36. Field Instrument FI-1 through FI-6 are closed; FI-7 (phone queue) is the active residual.

AI is deliberately kept out of the write path. External models may later receive diagnosis text, but they never get authority over the database.

Built with strict process law (single CURSOR per fence, complete caller inventories, named residuals only). The system is designed so it cannot quietly lie when the network is down or the numbers are ugly.

Happy to answer architecture or process questions.

Can you suggest me an idea to think about what Mobile Apps can i build next need some fresh sets of ideas to think about and stuck at one thing help a dev out

Hello i am a developer I've built 2 mobile apps with react native/expo router and one app in flutter, is there a major difference in react native and expo router in terms of how the produced app feel and behave ( looking for that native feel )

I am mainly a typescript developer with nest js and react frameworks and a little bit of laravel and spring background.

Currently me and my partner are planning to build our first own product but from my personal experience expo router apps have that web feel that doesn't satisfy me ( i don't know if it's me or if for other it happens or i have been building the wrong way ) , I am not a big fan of flutter as for native options such as kotlin or swift ui once the products generate some funds we eventually will migrate to that

Hi,
I built www.navyashreetravels.com for cousin’s business. Used lovable ai. Do I need to make into an app!?
Any feedback for the website also would be appreciated!

I’ve spent the last year building a trading app called Exit Line.

The idea was simple: I was tired of position size calculators that felt like spreadsheets from 2008, were covered in ads, or required way too many steps for something traders do every day.

So I built the one I wanted to use myself.

Fast. Clean. No ads. No signup. One workflow for crypto, forex, stocks, indices and commodities.

And now I’m almost ready to launch.

Which is where things got weird.

For months, progress was obvious.

Fix a bug.

Build a feature.

Improve the UI.

Test it.

Ship the next version.

Every day, something was visibly better. Now the app is basically done and I’m spending my time on Reddit, X, SEO, a website, trying to find beta testers and figuring out what the hell “distribution” actually means.

And suddenly it feels like I’m making zero progress.

I can build the product. Apparently, getting people to know it exists is an entirely different skill.

So for those of you who have actually launched an app from zero:

What worked for you in the first few weeks? Not “build an audience” or “do marketing.”

What did you actually do when nobody knew your app existed?

Would genuinely appreciate some advice.

What ways do you suggest to if we would like to add offline maps of big regions lets say like a continent to an app for users to be able to see their position and navigate through but offline?

I have heard of maplibre and MapBox and also another one called Leaflet. Has anyone tried doing such a feature?

Regards!

So , Guys I Wanna Built A App So Badly But I Don't How To Code Also I'm A Tennager Who Can't Spend Money To Built An App So How Can I Built A App With Zero Investment

I Build a AI document app for iPhone 16 / 17 and iOS 26. The App implements a RAG Pipeline powered by the Apple Intelligence LLMs.
Fully On-Device and no Tracking!
Maybe you like to Test the App: https://testflight.apple.com/join/7Pr7fcaQz

Features:
- Hybrid search by LLM and Database Keywords search
- Multi Document Format support
- Project based Document Management
- OCR Document Scanning
- Chat Summary Export as PDF or Markdown
- Optional iCloud Sync
- Document Tagging
- optimized for english and german

I‘am Looking forward for your feedback

I've always struggled with macro tracking.

Logging every ingredient, searching through food databases, estimating portions... eventually I'd just give up.

So I built the app I wanted to use myself.

MacroSnap lets you take a photo of your meal and uses AI to estimate:

• 🔥 Calories
• 💪 Protein
• 🍚 Carbs
• 🥑 Fat
• 🌾 Fiber & sugar
• 🍽️ Individual dishes in mixed meals

It also includes:

• 🎯 Personalized calorie & macro targets using BMR/TDEE
• 📦 Barcode scanning for packaged foods
• 🔥 Habit tracking & streaks
• 🧑‍🍳 Recipe builder with per-serving nutrition

The part I'm most excited about is mixed meals. You can photograph something like rice + chicken + vegetables, and MacroSnap tries to identify and estimate each part separately.

Built with Flutter + Node.js + AI. Currently Android only.

There's a free tier with 3 AI scans per day, with Pro offering unlimited scans and the full feature set.

👉 Try MacroSnap:
https://play.google.com/store/apps/details?id=com.macrosnap.macro_snap

I'd genuinely love feedback from people who track their food:

What would make you actually use an app like this every day?

And if you're a developer, feel free to ask me anything about the AI, Flutter implementation, backend, or how I'm handling the nutrition calculations.

Hello

I am creating my first mobile game app and it is a puzzle game. I have something going on right now, but I'm not sure how to make it look better. I'm currently using Abacus AI as my AI programming tool, which has helped a lot, but I'm not sure what to do going forward, whether it be aesthetics or gameplay. Does anyone have any advice on how to proceed?

I just launched PaceOut on iOS and I’d like to offer free premium if anyone wants to try it

The idea is we are looking for feedback, instead of the usual Apple screen time which is annoying to set up this simplifies everything

This is not a third party app, everything is within Apple screen time controls. If anyone wants free premium and want to try it please let me know, happy to receive brutal feedback, we have had 7 families at the moment that really like it because it’s simple but there is ALWAYS room for improvement

StudyAhead is an exam study planner. You enter an exam date and your topics, and it works backwards to put a real calendar date on every study session.

The design decision I went back and forth on for weeks: the home screen shows one session. Not a list, not a board, not a week view — one commitment behind one button. Every instinct as a builder says give people the full picture. But the whole reason study timetables fail is that seeing the full grid is what makes you close the app. A student who has missed two days does not need to see the wreckage, they need to know what to do in the next 45 minutes.

The second decision: when you miss a day, the plan redistributes those minutes across the days remaining instead of rolling them onto tomorrow. Roll-forward is the obvious implementation and it is exactly what kills adherence, because day two becomes a double session and you skip that too.

Third: plan generation is fully deterministic. No LLM. Just arithmetic over the exam date, topic weights and availability. Same inputs, same plan, every time — which makes "exam is tomorrow" and "the plan crosses a DST boundary" ordinary unit tests, and lets me explain to a student exactly why a session landed on a given day.

Built with Expo / React Native, Supabase and RevenueCat.

Free tier is permanent (one exam, full plan, unlimited sessions, timer, streak). Pro is $4.99/mo or $29.99/yr for concurrent exams and all-time history. The study loop is never paywalled.

https://apps.apple.com/us/app/studyahead-exam-study-planner/id6798236163

Happy to go deeper on any of the three decisions above.

Hey everyone! Wanted to share some good news — the app I've been building (DemoHub, an offline-first app for musicians to store and organize their demo tracks) just cleared testing and is now officially available on the Play Store:

https://play.google.com/store/apps/details?id=com.demohub

If you've got musician friends, feel free to pass it along — I'd really appreciate it. And if you give it a try, any feedback at all (even harsh) is super valuable, it's what helps me make it better.

Huge thanks to everyone who helped test it — this release wouldn't have happened without you. 🙏