One codebase, two platforms
React Native, Expo, and Flutter let you ship for iPhone and Android at the same time, without doubling the development work. You save time and budget without sacrificing smoothness or native feel.
ServiceMobile apps · Toulouse
Mobile App Development
iOS & Android apps from a single codebase: native quality, in half the time
A mobile app puts your service in your users' pockets. I build iOS and Android apps with React Native, Expo, or Flutter: a single codebase, a controlled budget, and App Store and Google Play publishing handled end to end.
Mobile-first design and native UX
Every screen is designed for the thumb: smooth navigation, animated transitions, native components (bottom sheets, pull-to-refresh, haptic feedback). The result feels like an installed app, not a wrapped website.
Notifications, geolocation, integrations
Push notifications to keep users engaged, geolocation, camera, in-app payments: your app taps into the phone’s capabilities and connects to your existing services (API, CRM, CMS).
Offline mode and performance
Essential data is cached locally so the app stays usable without a connection. When the network comes back, syncing happens automatically. Startup time, bundle size, and battery consumption are all optimized before every release.
From idea to the app stores
Scoping, mobile-first design, development, testing on real devices, then publishing: I handle submission to the App Store and Google Play, including the review back-and-forth. You’re not on your own after launch.
What’s included
- iOS + Android, a single codebase
- React Native, Expo, or Flutter depending on your needs
- Native UX design (animations, haptics, gestures)
- Push notifications and geolocation
- Offline mode with syncing
- Connects to your services (payment, camera...)
- Testing on real devices
- App Store and Google Play publishing
Already shipped for
Each card states the exact scope of the mission, and each one has its own case study.
Quoted after scopingthen €125/month
Book a callNative, hybrid, or PWA?
Before development starts, you need to pick the right approach. Each option has its strengths: here’s how I help you decide based on your budget, timeline, and technical needs.
Hybrid app
Built with React Native, Expo, or Flutter, it combines a single codebase with native rendering. It’s the best balance of quality, cost, and timeline for most projects: you reach iOS and Android without doubling the budget.
Native app
Written in Swift (iOS) or Kotlin (Android), it delivers maximum performance. Relevant for 3D games or heavy hardware use, but it doubles development. Rarely justified for a business or general-audience app.
PWA (Progressive Web App)
An installable website, no app store required. Ideal for testing a concept quickly or for internal use. Limits: push notifications aren’t as reliable on iOS, and there’s no full access to the phone’s hardware.
Apps for which uses?
Retail and click & collect
Product catalog, online ordering, in-store pickup, and a loyalty program with push notifications to bring customers back.
Booking and appointments
Real-time calendar, automatic reminders, in-app deposit payment. For salons, coaches, practitioners, and equipment rental.
Field and business apps
Offline data entry for teams on the move, geotagged photos, signatures, and syncing with your CRM or ERP once back online.
Community and startup MVPs
Profiles, messaging, activity feed, subscriptions. An MVP published to the stores in a few weeks to validate your market before investing further.
How does the project unfold?
Scoping and mockups
User journeys, wireframes, then high-fidelity mockups validated together before the first line of code.
Iterative development
Builds delivered every two weeks to your phone via TestFlight and Google Play internal testing.
Real-device testing
Recent and older iPhones, entry-level and high-end Android: validated on real phones.
Store publishing
Developer accounts, listings, screenshots, submission, and the review back-and-forth, all handled.
Follow-up and updates
Guaranteed fixes, OTA updates that skip the stores in most cases, and ongoing improvements based on feedback.
Mobile app developer in Toulouse
Based in Toulouse, I help small businesses, startups, and freelancers across Occitanie build their iOS and Android app. In-person scoping workshops around Toulouse and its region, or video calls anywhere in France. A single point of contact, from the first meeting to store publishing.
Frequently asked questions
React Native, Expo, or Flutter: how do you choose?
React Native and Expo share the JavaScript ecosystem: if you already have a React or Next.js site, the code and skills carry over directly. Expo simplifies deployment even further with OTA (over-the-air) updates that skip the app store review. Flutter, built on Dart, excels at highly customized interfaces with complex animations. I recommend the right stack for you during scoping.
Who publishes the app to the stores?
I do. Creating developer accounts, preparing store listings, submission, and the review back-and-forth with Apple and Google are all included in the package.
How long does it take to build an app?
A functional MVP typically takes 6 to 10 weeks. A full application with integrations, a back end, and store publishing runs 3 to 5 months. The exact timeline depends on the number of screens, third-party integrations, and business complexity.
Can the app work without an internet connection?
Yes. Critical data is stored locally (SQLite, AsyncStorage, or Hive depending on the stack). Users keep using the app, and syncing with the server happens automatically once the connection returns.
Do I need a separate back end for the app?
It depends on the project. For simple cases (content, catalog), a headless CMS or an existing API is enough. For business logic (authentication, payment, real-time data), I build a custom back end with Node.js or use managed services (Firebase, Supabase).
Let’s talk
over a call?
30 minutes to scope your project and leave with an honest recommendation, even if it’s not me.