r/appdev

▲ 30 r/appdev+11 crossposts

I’ve tried building habits more times than I can count.

Gym, journaling, reading — I’d go strong for a few days, maybe a week… and then just stop.

For a long time I thought it was lack of discipline. But after paying attention, I realized something stupid:

I wasn’t failing the habit — I was failing the logging.

Every time I completed something, I had to:
unlock phone → find the app → open it → tap around → log it

Took ~20–30 seconds.

Doesn’t sound like much, but that tiny friction was enough for me to start skipping… and once I skipped tracking, the habit itself died soon after.

So I tried an experiment:

What if logging a habit took less than 2 seconds? ⚡

Like literally just saying:
“habit done” 🎤

That idea bothered me enough that I spent the last ~3 weeks building a small Android app for myself (just nights after work).

No grand plan — just wanted to remove friction completely.

What I changed:

  • Voice input instead of typing 🎤
  • Everything works offline (no accounts, no sync headaches) 📵
  • One simple screen for everything (tasks + habits together) 📊
  • Basic streaks just to see consistency 🔥

Nothing fancy.

But weirdly… it worked.

For the first time, I didn’t drop off after a week. Logging felt almost invisible, so I kept going without thinking about it.

A couple of friends tried it too and had similar results, which honestly surprised me.

So I put it on the Play Store yesterday just to see if anyone else finds it useful. No monetization or anything — I wouldn’t even know how to market it properly 😅

Google Play Store Link: https://play.google.com/store/apps/details?id=com.souravsn.daymint

Right now I’m more curious about this:

Do you think friction (like opening apps, typing, etc.) is what kills habits more than motivation? 🤔

Or is this just a “me problem”?

If you’ve struggled with consistency, I’d love to know what actually breaks the chain for you.

Happy to share the app link if anyone wants to try it — but mostly just here to learn what works / doesn’t 🙏

u/Radiant_Budget_5183 — 12 hours ago
▲ 7 r/appdev+3 crossposts

We built an offline-first cashbook app focused on privacy and simplicity

We built a cashbook app for people who prefer simple bookkeeping without mandatory accounts, subscriptions, or constant internet access.

Key features:

• Offline-first

• Light/Dark theme

• Multiple books/accounts

• Multi-currency support

• Custom categories & payment modes

• Export and share reports as PDF

• Optional encrypted backups

The goal was to make expense and cash tracking fast, clean, and privacy-friendly while still being flexible enough for personal or small business use.

Would genuinely appreciate feedback, suggestions, or feature ideas from the community.

App Link: https://play.google.com/store/apps/details?id=in.inocentum.cashbook

u/Lrd_Grim — 1 day ago
▲ 19 r/appdev+19 crossposts

I just launched my first app after ~3 weeks of nonstop vibe coding and somehow survived like 10 App Store rejections 😭

The app is called Puplytics.

Before this project I had basically zero real coding experience. I went from not understanding app structure at all to learning React Native / Expo workflows, App Store Connect, subscriptions, AI APIs, privacy compliance, camera permissions, TestFlight builds, backend deployment, and debugging random production issues at 2am.

Honestly the hardest part wasn’t even building the app — it was getting through Apple review.

I got rejected for:
• subscription flow issues
• missing legal links
• camera permission wording
• AI consent flow compliance
• metadata problems
• purchase restore handling
• sandbox purchase behavior
• UI edge cases on iPad
…and probably more I’m forgetting lol.

The app itself is a dog wellness tracking app focused on digestive health and daily wellness tracking.

Features include:
• AI stool scan analysis
• symptom tracking
• food logging
• sleep & mood tracking
• AI wellness chat
• trend analysis
• downloadable vet reports
• multi-pet support
• reminders and history timelines

The original idea came from dealing with recurring stomach issues with my own dog and constantly forgetting what food changes or symptoms happened during vet visits.

So I basically built the app I wished existed.

The craziest part is realizing how much you can actually build now if you’re willing to learn while moving fast.

Would genuinely love feedback from other builders / vibe coders:
• UI/UX thoughts
• onboarding feedback
• feature ideas
• App Store screenshots
• monetization thoughts
• anything that feels confusing or broken

Still improving it daily. (As of right now it’s been live for about 20 minutes lol)

The app is called Puplytics on the App Store if anyone wants to roast/test it 🙏

reddit.com
u/ORPH_APE — 1 day ago
▲ 6 r/appdev+6 crossposts

I wanted one app to manage my entire life, so I built Biona

After months of building nights/weekends, I finally released the first version of Biona — an offline life manager for iPhone.

I originally built it because most productivity apps started feeling overwhelming to me—too many tabs, accounts, AI features, subscriptions, notifications, etc.

So I wanted something simpler:

  • Todos
  • Goals
  • Mood logging
  • Weekly insights
  • Fully offline
  • Clean dark UI

One thing I’m proud of is that the app works completely offline. No account creation, no data collection, no cloud dependency.

This is still only the beginning. My long-term vision for Biona is to turn it into a true “life super app” — one place to manage everything important in your life with a clean and calm experience instead of using 10 different apps.

Right now, this is v1, and I’m actively improving it.

Would genuinely love feedback from you, guys, so I can make it better!

Freemium

  • Free download
  • One-Time IAP for Pro Premium Version

App Store:
Biona: Life Manager

u/BeDevForLife — 1 day ago
▲ 2 r/appdev+1 crossposts

App Android open source para evaluar rentabilidad de viajes en Argentina — busco feedback técnico y de uso real

Buenas, gente.

Estoy desarrollando Viaje Rentable AR, una app Android gratuita y open source pensada para conductores de apps de viaje en Argentina.

La idea es ayudar a evaluar rápidamente si una solicitud conviene o no, usando OCR, cálculo local de rentabilidad y una recomendación visual superpuesta.

Qué hace

• Lee datos visibles de una solicitud mediante OCR.
• Calcula métricas como $/km, $/hora, costo estimado y ganancia neta.
• Muestra una recomendación visual: aceptar, revisar o rechazar.
• Permite configurar mínimos y costos según el criterio del conductor.
• Procesa todo localmente en el dispositivo.

Qué NO hace

• No acepta viajes automáticamente.
• No rechaza viajes automáticamente.
• No toca botones de Uber, DiDi, Cabify ni otras apps.
• No usa APIs privadas.
• No guarda capturas.
• No usa backend ni login.
• No vende datos.

La app está en etapa alpha experimental. Ya hay una APK disponible para instalación manual desde GitHub Releases, pero todavía puede tener errores de OCR, diferencias según dispositivo o consumo pendiente de optimizar.

Stack principal

• Kotlin
• Jetpack Compose
• Material 3
• DataStore
• MediaProjection
• ML Kit OCR
• Foreground Services
• Overlay flotante
• Tests unitarios JVM

El objetivo es que pueda servir como herramienta comunitaria gratuita y, al mismo tiempo, como proyecto Android real con un problema concreto, documentación pública y posibilidad de recibir issues o PRs.

Me interesa especialmente feedback sobre:

• arquitectura Android;
• OCR/parser;
• consumo de memoria/CPU;
• UX para usuarios no técnicos;
• documentación;
• riesgos antes de difundirlo más;
• ideas de issues o PRs.

Repo:
https://github.com/Zibete/viaje-rentable-ar

Release alpha con APK:
https://github.com/Zibete/viaje-rentable-ar/releases/tag/v0.1.0-alpha

Aclaro por las dudas: no es una app comercial y no busca automatizar nada. Es una herramienta gratuita/open source y experimental para ayudar a decidir con más información.

Cualquier feedback es bienvenido.

u/Sharp_Ad1421 — 1 day ago
▲ 12 r/appdev+9 crossposts

I made ViewBuddy, an iPhone app for finding what to watch through friends

I built ViewBuddy because movie/show discovery still feels oddly disconnected from the people you actually watch things with.

The app is for:

- seeing what friends are watching, rating, and reviewing

- comparing taste before you trust a recommendation

- building watchlists and playlists

- browsing as a guest before deciding whether to create an account

I'm the developer, and I'm looking for practical feedback from people who try a lot of mobile apps:

  1. Is the purpose clear in the first minute?

  2. Does the feed feel useful before you have a lot of friends on it?

  3. What would make you invite one friend?

  4. Does anything feel confusing, slow, or unnecessary?

App Store: https://apps.apple.com/us/app/viewbuddy-rate-review/id6759533775

No pressure to be nice. Specific criticism is much more useful than generic encouragement.

u/numbersguy1 — 1 day ago
▲ 1 r/appdev

we're building an app based on sleep disorder for specifically ios people, since it's in medical/wellness direction, do we really need to give some features as of free, before the pricing plan, or can it be completely subscription based

I am very new to this area, so I would love your expertise in this domain

reddit.com
▲ 5 r/appdev+1 crossposts

I spent 6 months building a meal planner that doesn't require an account. Launched on iOS this month.

A bit of context: I'm a solo iOS dev. Every meal planner I tried wanted my email before showing me a single recipe, then upsold me to $7.99/mo. I wanted to know if I could ship a working one that asked for neither.

Six months later it's on the App Store. Here's what's in it:

- 524 recipes built in (not scraped — each has macros, steps, and a linked YouTube tutorial when one exists)

- Pantry tracking that feeds an "AI Meal Ideas" view — add the 6 things you have, get 6 dinners you can actually make

- One-tap shopping list generation from the week's plan, grouped by aisle

- Local notifications 25 minutes before each meal with the recipe queued up

- No account, no tracking, runs offline. $2.99/mo Pro after a 30-day free trial. Free tier is genuinely usable on its own.

Things I'd do differently:

  1. I underestimated how much work the recipe data layer was. I rewrote it three times.

  2. Shipping without account creation meant rethinking sync — I ended up using iCloud private database, which I'd recommend to anyone building a "no-account" app.

  3. The launch week ad budget is $20 because I ran out of money.

Happy to answer technical questions (SwiftUI, CloudKit, what shipped vs what got cut). Not here to push downloads — but if anyone wants to look, it's at mealcurate.github.io and there's a free 30-day Pro trial with annual subscription.

Critical feedback welcome. The next version is being scoped now.

reddit.com
u/OkStrawberry9638 — 2 days ago
▲ 17 r/appdev+7 crossposts

ClearView Studio just got a major upgrade.

ClearView Studio v2.0 is here.
More control. Better enhancement. Faster workflow.
Available now on the App Store.

Link: https://apps.apple.com/us/app/clearview-studio/id6767339271

What’s new in this version:
• Full iPadOS support with optimized layouts
• Real-time dual preview system (Original / Enhanced)
• Live enhancement preview updates before processing
• New enhancement control panel
• Added Gamma Level controls
• Added Color Balance Level controls
• Added Auto White Balance switch
• Improved offline video enhancement workflow
• Faster and smoother preview updates
• Improved processing experience and UI responsiveness
• Updated visual design with the new ClearView Studio theme
• Multiple stability improvements and bug fixes

u/tknzn — 2 days ago
▲ 27 r/appdev+5 crossposts

Adding big text to my screenshots increased App Store CR by 3%+

I used to have App Store conversion rates between 2% and 3.5% for my app.

Recently, I made one extremely simple change that pushed my CR to 5–7% almost immediately after the new screenshots went live.

The interesting part is that I had already tried adding text to screenshots before — but I used longer marketing-style sentences.

Then I started noticing that many successful apps shared on this subreddit used extremely large and very short text instead. So I decided to test it myself.

I redesigned my screenshots around a single idea:

Explain every feature in 1–2 huge words.

That was literally the only ASO-related change I made.

No keyword updates.

No metadata changes.

No external marketing.

No paid traffic.

Just screenshots with massive text that instantly communicates what the app does before the user even thinks.

The results honestly surprised me.

From the very next day the screenshots were approved, my CR jumped from ~2–3.5% to ~5–7%.

What’s even crazier is what a “small” 2–3% CR increase actually means in real numbers:

+30–50 additional downloads per day

~900–1500 extra users per month

…from a change that took maybe 5 minutes.

I also started noticing this behavior in myself while browsing the App Store:

The only screenshots that consistently make me stop scrolling are the ones with huge, instantly readable text.

My next step is localizing the screenshots, although that’ll be harder because many languages can’t explain features in only 2 words like English can.

Still, I’d honestly expect localized screenshots to push conversion even further — maybe into the 7–9% range.

Small changes can sometimes create surprisingly large results.

u/dejan000 — 2 days ago
▲ 52 r/appdev+4 crossposts

I built a System Design Simulator – drag, simulate, and break your own architectures in minutes

Hey folks,

I’ve been hacking on a side project: a web-based “System Design Simulator.” It’s like a whiteboard, but you can actually press play and watch your architecture behave (or fail).

What you can do:

  • Drag-and-drop common pieces: load balancer, API gateway, caches, DBs, queues, even some AI bits.
  • Hit “Start Simulation” to see latency, error rate, throughput, cache hit rate in real time.
  • Flip chaos switches: traffic spikes, cache-miss storms, network partitions, component crashes.
  • Share & remix: every design gets a short link; anyone can fork it and improve.
  • Built-in hints: it tells you if you forgot an entry point or storage.

Why I made it:

  • Diagrams don’t fail; systems do. I wanted a fast way to feel trade-offs without spinning up infra.
  • For interviews and design reviews, it’s nice to ask “what if the cache dies?” and just click a button.

Try it here: "https://paperdraw.dev/"

Quick start: drop Load Balancer → App Server → Cache → DB, press play, then trigger a cache-miss storm.

Would love feedback:

  • What metrics or failure modes would you add?
  • Is the start/stop flow obvious enough?
  • Any presets you want (payments, chat, ingestion)?
  • Should I add “export GIF of the run” for sharing?

Thanks for taking a look—happy to fix bugs or add features if you ping me.

u/Leather_Silver3335 — 3 days ago
▲ 2 r/appdev

Cross Platform vs Native App Development

It looks like frameworks like Flutter and React Native are being adopted at a much faster rate because companies want to go to market faster and save development costs early on.

Would be interested to hear if developers here still favour native apps or if the trend is more towards cross-platform solutions nowadays.

reddit.com
u/Ok-Type8092 — 2 days ago
▲ 16 r/appdev+3 crossposts

Apple Magic Trackpad and Keyboard app for android

I have created an android app which can act like an apple magic trackpad and apple keyboard. It supports all gestures of an apple magic trackpad. Currently it's in closed testing. I am sharing a demo video of the app. If anyone wants to try it please share your gmail in DM, I will add you to the closed testing track on google play store.

Demo Video: https://www.youtube.com/shorts/Dl4SW98Vztw
Playstore app link: https://play.google.com/store/apps/details?id=com.magic.trackpad.free
Macos Companion app: https://github.com/sks147/RemoteMagicTrackpad/releases

u/sks147 — 3 days ago
▲ 3 r/appdev+1 crossposts

Looking for feedback on my first iOS app: a meditation app with no guided meditations

Hey r/appledevelopers, I’m Harun.

My co-founder Mavis and I recently launched our first iOS app, SelfMeditate.

It is a meditation app, but it has no guided meditations.

That is the whole point.

I felt that many meditation apps had become audio libraries. You open the app, choose a voice, follow the instructions, finish the session, and then come back tomorrow to be guided again. I do think guided meditation can help, especially at the beginning.

But meditation, by its nature, asks you to sit with your own experience directly. You notice the breath, the body, the thoughts, the resistance, the boredom, the calm, whatever is there.

The app should hold the space for the practice, not fill it.

So we built SelfMeditate more like a bell, a timer and a notebook. It gives users enough structure to sit, track, reflect and return, without putting another voice in the middle of the practice.

Features include:

silent timer
optional interval gongs
optional ambient sounds
presence rating after each session
private journal with text, voice notes, drawings, images and files
practice insights based on sessions
local-first storage
iOS widgets, Live Activities and Dynamic Island support

Since this is our first iOS app, I’d really appreciate feedback from other developers.

iOS only for now:
https://apps.apple.com/us/app/selfmeditate-meditation-timer/id6757534578

Thanks.

u/jungledub — 2 days ago
▲ 64 r/appdev+11 crossposts

Eric Seidel (co-founder of Flutter) is speaking at a Flutter conference may 27th in SF: free livestream

hey, lydia from the FlutterFlow team!

Eric Seidel built Flutter at Google. he's now building Shorebird and has been inside the tool that underpins most of what this community ships longer than almost anyone.

he's on stage at FFDC on may 27th in San Francisco for a session called Flutter Insights with Abel Mengistu (FlutterFlow, YC W21) and Abdallah Shaban (product at Google and co-founder of Celest (YC W24)).

three founders who built on the Flutter foundation and then went to build further are going to be sharing next steps with Flutter!

free livestream. in person at The Midway, SF. ffdc.io

— lydia, FlutterFlow team

reddit.com
u/CommunityTechnical99 — 3 days ago
▲ 6 r/appdev+3 crossposts

I created an app called Casino Blocker to help people quit gambling and block casino content on their phones.

Hey everyone,

For the last few months I’ve been building Casino Blocker — an Android app focused on blocking gambling websites, betting ads, casino redirects, and addictive triggers.

Main features:

AI-powered gambling detection

The app scans and detects gambling-related websites in real time, including many mirror and newly created casino domains.

System-wide blocking

Blocks casinos, sportsbooks, betting ads, and suspicious gambling links across browsers and apps.

Privacy focused

No unnecessary tracking or selling user data. The app is designed to stay lightweight and work mostly on-device.

Built for relapse prevention

Casino Blocker isn’t just a normal website blocker — the goal is to reduce impulsive gambling behavior and make access to betting platforms harder.

Fast and lightweight

Optimized for Android with low battery usage and smooth background protection.

For developers:

The app is built with modern Android technologies and uses AI-assisted gambling detection + local filtering systems for fast real-time protection.

I’m actively improving the app and already updating the AI scanner regularly based on feedback.

Would love to hear your thoughts about:

• UI/UX

• Features

• Blocking quality

• Ideas for improvement

Play Store: Casino Blocker

Feedback is very welcome :)

u/KitLutik — 3 days ago
▲ 3 r/appdev+2 crossposts

I want to build a consultant app but I have zero coding knowledge.

The idea is to create an app for a very specific purpose where people can get better, more personalized answers than generic AI tools like ChatGPT.

I keep seeing people build apps using AI + no-code tools now, so I wanted to ask:

  • What AI tools or no-code platforms should I learn first?
  • What would the roadmap look like from idea -> building -> publishing on Google Play Store?
  • How do solo founders handle backend, payments, databases, etc., without coding?

And most importantly, how can I make the app genuinely useful so users prefer it over just asking ChatGPT directly?

Would love tool suggestions, learning resources, or advice from people who’ve already built something similar.

reddit.com
u/eruditeniti — 3 days ago