Mobile apps
Mobile apps your users keep.
Our core craft. On iPhone and Android alike, we build fast, reliable, intuitive apps, then keep them alive over time. The products we’ve built reach more than 150 million users.
Who it’s for.
You’re launching a product
A solid MVP, shipped in weeks and built to grow without a rewrite.
Your app has aged
Legacy code, crashes, slow releases: we modernise it step by step, without breaking what works. As we did for Pictet Wealth.
Your team needs reinforcement
We join your product team and ship with it, as we did inside BlaBlaCar’s Booking squad.
Several apps, one platform
Shared libraries, modules, CI/CD: one foundation to ship faster, as at Welltech.
What’s included.
iOS and Android
Native (Swift and SwiftUI, Kotlin and Jetpack Compose) or cross-platform (Kotlin Multiplatform, Flutter), whatever suits your product.
Polished interfaces
Clear, consistent screens on a design system that saves time with every new feature.
A solid architecture
Clean Architecture, modules, predictable state: testable code your team can take over.
Payments and subscriptions
In-app purchases, subscriptions, Stripe: getting paid properly, on both stores.
Tests and quality
Automated tests, code reviews and crash monitoring, for an app that stays stable.
Store releases
Build pipelines, test builds, Apple and Google review, published on our developer accounts, at our cost.
Production monitoring
Crashes, performance, usage: we see what happens and fix it fast.
What comes next
After launch, we stay: OS updates, fixes, new features.
Built with.
- Kotlin
- Jetpack Compose
- Swift
- SwiftUI
- Kotlin Multiplatform
- Flutter
- Clean Architecture
- MVI
- Stripe
- CI/CD
How we work.
Understand
We listen before we build. Goals, constraints, users, existing systems: we map the full picture before writing a single line of code.
Architect
Technology choices, system design, and project roadmap, defined upfront. No ambiguity mid-delivery, no surprises in the invoice.
Build
Iterative delivery with weekly check-ins. Readable code, thorough testing, continuous communication. You always know where the project stands.
Deliver
Production-ready software: documented, tested, and built for your team to own. We hand over with confidence, not disclaimers.
It depends on the product. Native (Swift, Kotlin) gives the best experience and the whole phone; Kotlin Multiplatform shares the logic and keeps native interfaces; Flutter keeps a single codebase. We recommend what suits your product, not our habits.
6 to 10 weeks in general, depending on scope. We give an honest timeline after the scoping call, and we keep to it.
Yes. We start with an assessment (architecture, crashes, technical debt), then modernise it step by step, without freezing your releases.
We do, on our Apple and Google developer accounts and at our cost: listings, test builds, review. You have no account to create and no fee to pay, and the code stays yours, as the contract says.
Your next product deserves better engineering.
Tell us what you’re building. We’ll tell you honestly whether we’re the right fit, and if we are, we’ll start within two weeks.
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