Web app
Client portal or internal tool, secure login, dashboard, exports.
from €5,000 excl. VAT
4 to 8 weeks
We build business apps that replace spreadsheets, paper and double entry: on desktop, iPhone and Android, with your data hosted in Europe. Our own apps, Truelle and Carnet Maison, are built exactly this way.

Client portal or internal tool, secure login, dashboard, exports.
from €5,000 excl. VAT
4 to 8 weeks
iPhone and Android from one codebase, App Store and Google Play release.
from €8,000 excl. VAT
6 to 12 weeks
Per month: hosting, security updates, verified backups, small changes.
from €90 excl. VAT
No commitment
Indicative prices excluding VAT; a precise quote follows a free first call.
A free first call, then a short specification: who uses the app, for what, under which constraints.
Clickable mock-ups of every screen, approved with you before the first line of code.
Releases every two weeks, automatically tested, that you try on your own phone.
Store release, go-live, training, then maintenance and new features.
Technologies: Flutter · Expo (React Native) · Laravel · Next.js · Vue · PostgreSQL · Supabase · Stripe · Mistral AI
Based in Aiffres, next to Niort (France), we build your web and mobile app development for clients across western France — on-site meetings within 150 km — and remotely everywhere else.
No. We use Flutter or Expo: one codebase produces the iPhone app, the Android app and often the web version, almost halving the cost.
You do, once the project is paid. Source code, store accounts and hosting are in your name.
Yes, when useful (building sites, basements, no-signal areas): data is kept on the phone and synced when the network is back.
Describe it in a few lines: reply within 2 business days, with a first estimate.