Your customers are on mobile. Your app should be too.
We design and ship your iOS and Android applications: for your customers, your field teams or your partners. Cross-platform or native, plugged into your back-office, published on the stores.
iOS + Android in parallel
Plugged into your back-office
Published in 8 to 12 weeks
Mobile web is not an app
A responsive website opened in a browser has neither the engagement nor the capabilities of a real native app.
No home-screen icon, no push notifications, no sensor access, URL bar always visible, low engagement.
Home-screen icon, push notifications, offline mode, camera/GPS/biometric access, mobile-first UX and native navigation.
Why a real mobile app?
Responsive web isn't enough when mobile becomes a critical channel.
Mobile is more than half of traffic
In most industries, over 60% of sessions come from mobile. A mediocre web experience directly costs conversions.
An app builds loyalty
An icon installed on the home screen is a permanent presence. A push notification is a direct channel that doesn't depend on email or SMS.
Access to phone hardware
Camera, GPS, biometrics, NFC, Bluetooth, sensors: everything that makes a mobile experience truly powerful is only accessible through native (or React Native).
Offline mode for the field
Your mobile teams aren't always connected. An offline-first app keeps working and syncs as soon as the network comes back.
Targeted push notifications
Alert at the right time, segment by profile, trigger on business events: push is the most effective reactivation tool — when done right.
Mobile UX, not adapted mouse UX
A native app is designed for the thumb: gestures, tab navigation, native transitions, fluid performance. A responsive site stays a website.
What you gain with a native app
Engagement, performance, hardware access: measurable benefits.
Permanent presence
An icon on the home screen multiplies reopen rate by 10 vs a website. Users come back without typing a URL.
Effective push notifications
Real-time info, reminders, business alerts: a direct channel with no send cost and far better open rates than email.
Native performance
Fluid animations, native transitions, fast startup: the perceived quality of a native app directly impacts satisfaction and retention.
Sensor access
Camera (QR scan, intervention photo), GPS (geolocation, routing), biometrics (FaceID/TouchID), NFC, Bluetooth: everything becomes possible.
Offline operation
Smart sync, encrypted local data, deferred action queue: the app stays usable offline and catches up automatically.
Store distribution
App Store and Google Play publication: credibility, code signing, updates managed by stores, in-app payments if needed.
Our method
Five steps to go from idea to an app published on the stores.
Mobile UX scoping
We define key journeys, platform constraints (iOS, Android), and the native vs cross-platform choice based on your budget, deadlines and performance needs.
Interactive mockups
Figma prototype navigable on device: we validate mobile ergonomics, gestures and key screens before writing a single line of code.
Sprinted development
Two-week sprints with builds delivered to TestFlight and Play Internal. You test the app on your own phone, you steer, we iterate.
Device testing and beta
Testing on a real device fleet (iOS and Android, old and recent), structured user beta, feedback integrated before store submission.
Publication and evolution
App Store + Google Play submission, review monitoring, crash monitoring (Sentry/Firebase), regular release of new versions.
Typical example
A representative case from projects we deliver.
Service company (maintenance, repairs, field audits) with 30 mobile technicians. Interventions recorded on paper or shared Excel, photos sent via WhatsApp, customer signatures on personal tablets.
One hour of re-entry per technician each evening, lost or misfiled photos, invoices delayed by several days. Customers demand a clean report quickly — it's unmanageable.
An iOS and Android app (React Native) for technicians: daily schedule, intervention form, geotagged photos, customer signature, PDF generation, back-office sync as soon as network returns.
1h30 saved per day per technician, zero photo loss, invoicing started the same day as the intervention, customer reports sent within 24h. 100% adoption in 3 weeks.
The stack we use
Cross-platform to move fast, native when performance or sensors demand it.
Cross-platform or native · iOS + Android in parallel
React Native
Swift
Kotlin
Expo
Firebase
Node.js
Frequently asked questions
We choose based on your case. React Native covers 90% of B2B needs with a single codebase for iOS and Android — saves time and cost. Native (Swift/Kotlin) stays relevant if you have heavy performance needs, deep hardware access or very complex animations.
A cross-platform app on a focused business scope starts between €30k and €80k. A more complete project (back-office, multiple integrations, advanced modules) often lands between €80k and €200k. We provide a costed scope from day one.
Expect 8 to 12 weeks for a first published version, including Apple Review (typically 24 to 48h) and Google Play (a few hours). Subsequent submissions are faster.
We automate builds and publications via Fastlane and CI pipelines. A good portion of changes (texts, simple screens) can be deployed without a new submission thanks to CodePush or Expo Updates.
Local encryption (Keychain iOS / Keystore Android), biometric authentication, HTTPS pinning, GDPR compliance (consent, user rights), regular security audits: scoped from architecture day one.
Yes, in most cases. If you already have APIs, we consume them. If not, we build the backend layer in parallel (Node.js, Python, etc.), sharing as much as possible with your web stack where applicable.
Let's talk about your mobile app
Describe your need and we'll get back to you within 24 to 48h with a first recommendation and a costed scope.
Scope my project