Mobile app development
Your iOS & Android mobile app, at the best value for money
Native apps, cross-platform and MVPs — built by a French-speaking mobile agency
From idea to store launch, CRYSTAL IT designs your native or cross-platform mobile app. A French-speaking app developer, over 20 years of expertise and an offshore model that slashes your costs — with no compromise on quality.
- Native iOS & Android apps
- Cross-platform (Flutter / React Native)
- Competitive offshore rates
- 100% French-speaking team
Why CRYSTAL IT
A mobile agency that combines quality and controlled costs
We build high-performance iOS and Android apps, with the agility of a French-speaking partner and offshore pricing.
Proven mobile expertise
Over 20 years of software publishing: our app developers master iOS and Android as well as cross-platform frameworks.
Best value for money
An offshore model that cuts the cost of building your mobile app by 40 to 60% compared to a mobile agency in France, for equal quality.
100% French-speaking team
Scoping, documentation and support in native French: zero language barrier between you and your app developer.
iOS, Android & cross-platform
Native app or cross-platform application (Flutter, React Native): we pick the technology best suited to your budget and your users.
Fast time-to-market
A mobile MVP approach to launch fast, measure real usage and iterate — without over-investing before validating your market.
Long-term maintenance & support
iOS/Android updates, fixes and enhancements: we keep your app alive after its publication on the stores.
What we build
Every type of mobile app
From native apps to startup MVPs, we cover all your mobile needs, on iOS and Android alike.
Native iOS & Android apps
High-performance native apps in Swift and Kotlin, designed to make the most of each platform: fluidity, notifications, sensors and offline access.
Cross-platform applications
A single Flutter or React Native codebase deployed to iOS and Android: shared development that's faster and more cost-effective.
Business & internal apps
Digitize your field processes: mobile data entry, service management, catalog, inventory or ERP connection, through to private deployment.
Mobile MVP for startups
Turn your idea into a concrete application: a polished mobile MVP, delivered fast, to win over your first users and investors.
Redesign & modernization
Is your app aging or lagging? We take it over, modernize its design and performance, and bring it back up to store standards.
Maintenance & evolution
Continuous support, iOS/Android version upgrades, new features and monitoring: your app stays reliable and up to date.
Our method
From idea to published app, in full transparency
A proven process that keeps you in control of your app project, at every stage.
1. Scoping & design
A call to understand your app project, your users and your goals. Together we define the scope and the best technical approach.
2. UX/UI design & prototype
Mockups and an interactive prototype of your mobile app: you visualize the screens and validate the journey before a single line of code.
3. Development & testing
Iterative development with regular demos, testing on real iOS and Android devices, and continuous fixes until the expected quality is reached.
4. Publication & follow-up
Go-live on the App Store and Google Play, training, then maintenance and enhancements to support your app's growth.
- 20+
- Years of software expertise
- iOS + Android
- Platforms covered
- 50+
- Apps & projects delivered
- UTC+1
- Same time zone as France
Frequently asked questions
Mobile app development: your questions
- How much does mobile app development cost?
- The budget depends on the scope (number of screens, features, back-end). Thanks to our French-speaking offshore model, the cost of building a mobile app is usually 40 to 60% lower than with a mobile agency in France. We provide a detailed quote after a free initial conversation.
- Native or cross-platform: which should I choose?
- A native app (separate iOS and Android) offers the best performance for demanding uses; a cross-platform application (Flutter, React Native) shares the code and reduces costs and timelines. We advise you on the solution best suited to your project and budget.
- How long until my app is delivered?
- A polished mobile MVP is usually delivered in a few weeks to a few months depending on complexity. Our iterative approach shows you working versions very early, so you can launch on the stores as fast as possible.
- Do you publish the app on the App Store and Google Play?
- Yes. We handle the entire publication process on the App Store (iOS) and Google Play (Android), as well as updates and maintenance after go-live.
- Do you work with businesses in France from Morocco?
- Absolutely. Our French-speaking team supports clients in France and Morocco alike, 100% remotely, with regular exchanges over video calls and WhatsApp, and the same time zone (UTC+1).
Let's talk about your app
A mobile app project? Get in touch
Tell us about your app idea: we'll get back to you quickly with advice and an estimate. The first conversation is free and with no commitment.
Request a free quote
Our mobile experts will get back to you as soon as possible.