Sober Bet
Betting addiction recovery app with community support.
⚡ 20 days📊 20M+ ViewsiOSAndroid
Mobile App Development Agency
iOS and Android from one codebase — React Native + Expo, store-ready, fixed price in about 21 days.
A mobile app development agency should ship store-ready iOS and Android — not a webview wrapped in a store listing. We build with React Native and Expo so you get both platforms without two native teams.
Founders come to us when freelancers stall on TestFlight, Play Console, push notifications, or subscriptions. Those are part of the product, not extras we invoice later.
Timeline: 21 daysPrice: From $3,460Fixed price — no hourly billing
Why mobile app development is easy to get wrong
Separate iOS and Android teams double cost and calendar for the same MVP loop
Freelancers disappear between TestFlight and App Review
Store rejection (privacy, subscriptions, screenshots) kills launch week
A web-only PWA is not a substitute when you need push, camera, or IAP
What we build
iOS + Android clients
One React Native codebase. Native navigation, lists, and device APIs — not a stretched website.
Auth and onboarding
Email, social, or magic links. Onboarding that collects only what v1 needs.
Core loop
The one job the app exists for — feed, tracker, booking, marketplace — scoped before kickoff.
Push notifications
Expo push with preferences. Transactional first; marketing later.
Store submission
Privacy text, screenshots, and review notes. We have been through App Review enough to not treat it as a surprise.
Typical features in v1
Cross-platform
Ship both stores without hiring Swift and Kotlin teams for v1.
OTA updates
Expo updates for JS fixes after launch — within store rules.
Subscriptions
RevenueCat when you sell IAP. Web billing via Stripe when that is the motion.
Development process
1
Scoping call
30 minutes. We lock the v1 loop, platforms, and a fixed price.
2
Design sprint
Days 1–5. Core screens and data model. You approve before heavy build.
3
Build sprint
Days 6–18. Daily Slack updates. Scope cuts happen in the open.
4
Launch & handoff
QA, deploy or store submission, repo access, two weeks of fixes.
Recommended stack
- React Native + Expo — iOS and Android client
- Supabase or Node API — Auth and data
- RevenueCat / Stripe — Subscriptions and payments
- EAS Build — CI binaries for both stores
What you get
- → iOS app
- → Android app
- → Backend API
- → App Store + Play submission
- → Full source code
Relevant work — mobile app development
Production products we shipped. Metrics come from those projects — we do not invent case studies for this page.
Pouch Watch
The flagship app for tracking and managing nicotine pouches.
⚡ 14 days📊 Good MRRiOSAndroid
Emile
Brussels city guide app for authentic culinary experiences.
⚡ 20 days📊 5000+ UsersiOSWeb
Twice
AI-powered social media app consolidating connections with smart recommendations.
⚡ 35 days📊 6K+ UsersiOSAndroid
Planning resources
FAQ
How much does a mobile app development agency charge?
Traditional shops often quote $50K–$150K over months. Our fixed-price mobile MVP starts at $3,460 for a scoped loop, typically around 21 days.
Native or cross-platform?
React Native + Expo for most MVPs. Swift/Kotlin when AR, heavy sensors, or a platform-specific SDK forces it.
Do you handle App Store and Google Play?
Yes. Accounts stay in your name. We prepare the listing and submission.
Can you add a web app later?
Yes. We keep the API clean so a Next.js web client is an add-on, not a rewrite.
Specialized agency services
MVP Development Agency
iOS, Android & web MVPs in 20 days
Startup MVP Development
Pre-seed and seed MVPs, fixed price
iOS App Development Agency
App Store-ready iOS apps, fixed price
Web App Development Agency
Next.js production web apps
SaaS MVP Development Agency
Subscription SaaS from idea to MRR
AI App Development Agency
Chat, copilots, and AI SaaS MVPs
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Start your MVP
Free 30-min scoping call. Fixed price quote after we write the v1 list.
Book a Free Call →