Software & App Development in France

France's CNIL applies data-protection rules with particular rigour, and French buyers — B2B especially — expect a software partner to speak to that seriously rather than treat it as boilerplate. We build custom software and mobile apps for French businesses with careful data handling as part of the architecture from the outset, and with genuinely French-language product and support communication where it matters to the buyer.

What we build

• Custom web platforms — in Python (FastAPI or Django) and React, built around your actual process.
• iOS and Android apps — connected to a real, properly secured backend.
• SaaS products — for French businesses building something to sell, with CNIL-aware data handling designed in from the start.
• Dashboards and internal tools — for operational reporting that holds up under scrutiny.

Data handling has to be real, not a policy document

A French buyer asking about data protection is asking about the actual system — where data lives, who can access it, how consent is recorded and honoured. We design that into the architecture rather than adding a privacy policy afterwards, because the two need to match, and a careful buyer will notice if they do not.

How we work

We map your users, workflows, data and integrations before writing code, then build in sprints with regular check-ins and continuous testing. Where AI genuinely fits the problem, we build it with RAG-based AI integration, handled with the same data care as the rest of the system.

The rest of the stack

API and systems integration connects what you already run; custom dashboards for a clear operational view; SaaS product development for products built to sell. For mobile, see Android development and hybrid app development.

Get a free project quote for your French software or app build.