L'excellence numérique au cœur de Paris. We build custom mobile apps for iOS and Android, native where performance demands it and React Native where a shared codebase pays for itself. Every engagement covers the parts that decide whether an app survives launch: an architecture that can take a second feature, analytics you can act on, store submission handled for you, and a maintenance path once real users arrive. No offshore handoff — the people who scope your app are the people who build it.
Paris is home to Station F and a dense startup scene supported by the La French Tech program, alongside luxury, insurance and banking groups. French buyers expect GDPR compliance enforced by the CNIL, French language interfaces, and the legal notice pages French law requires on every site.
Native French-speaking team with deep knowledge of RGPD compliance, the French startup ecosystem (Station F, BPI France), and luxury/fashion industry digital transformation.
Station F: Le Marais, La Défense, Sentier
Every Mobile App Development project in Paris is built with full compliance to local and international regulatory frameworks.
Every Mobile App Development project we deliver in Paris includes these enterprise-grade features, customized for Île-de-France's specific market requirements.
Swift and Kotlin where native matters, React Native where it does not, decided on your requirements rather than our preference.
The team that scopes your app writes it. No junior handoff after the contract is signed, and no offshore subcontracting.
A written scope and a fixed price per phase, so the number you approve is the number you pay.
App Store and Play Store listings, screenshots, privacy manifests and Data Safety forms, review responses and resubmissions.
Instrumented before launch, not after, so the first week of real usage tells you something you can act on.
OS upgrades, dependency patches, store policy changes and bug fixes under a monthly agreement rather than ad hoc invoices.
We use industry-leading technologies proven at scale by the world's top companies. Our stack is optimized for Île-de-France's infrastructure and regulatory requirements.
A proven, transparent development process refined through 100+ successful projects. Every milestone is tracked and communicated in your timezone (Europe/Paris). Here's an inside look at how we deliver Mobile App Development projects.
Every Mobile App Development project meets these measurable quality benchmarks before delivery. These aren't aspirational goals — they're contractual guarantees.
Automated unit, integration, and E2E tests cover all critical paths.
Performance, accessibility, best practices, and SEO all score above 90.
Server response time optimized through caching and edge computing.
LCP, FID, and CLS all within Google's recommended thresholds.
Guaranteed uptime with automated failover and disaster recovery.
SSL Labs A+ rating with strict CSP, HSTS, and security headers.
Real results from real clients in the Île-de-France market. Each project demonstrates our expertise in Mobile App Development with measurable business outcomes.
We apply industry-specific standards and compliance requirements to every Mobile App Development project in Île-de-France. Here's how we tailor our approach for each sector.
End-to-end encryption, BAA agreements, audit logging, and PHI access controls.
HL7 FHIR integration for seamless data exchange with EHR systems.
Telehealth, appointment scheduling, and patient portal integration.
Here's the specific process we follow for Mobile App Development projects, with timelines adjusted for Paris's market and working patterns.
Feature list, technical constraints, integration audit and a written fixed-price estimate before any code.
User flows, screen designs and a clickable prototype you can put in front of real users before development starts.
Two-week sprints with a working build at the end of each, real-device testing, and TestFlight or internal-track betas.
Store submission, launch monitoring, crash triage and a 30-day post-launch window included.
Transparent pricing with no hidden fees. All prices are in EUR and include RGPD & HDS (Hébergement de Données de Santé) compliance.
Average project budget in Paris: €40,000 – €400,000
8-10 weeks
12-18 weeks
20-30 weeks
Every Mobile App Development project includes a comprehensive set of deliverables designed for long-term success in the Paris market.
We're not just another agency. Here's what sets us apart in the Paris market.
From startups to Fortune 500s, we've shipped products across Luxury & Fashion, Banking & Insurance, Aerospace, and more.
Offices and partnerships across 13 cities. Deep understanding of Paris's regulatory landscape and business culture.
Every project leverages AI where it creates measurable value — from intelligent automation to predictive analytics.
RGPD & HDS (Hébergement de Données de Santé) compliance built into every project from day one. No shortcuts.
Real-time project dashboards, weekly demos, and direct Slack access to your engineering team.
85% of clients continue working with us after initial project. We grow with your business.
Paris app projects cover a wide spread: mobility and delivery services built around the city's density, booking apps for salons and restaurants, companion apps for retail brands, and internal tools for field staff. Before choosing technology, settle who the first users are and what they must be able to do offline, because metro tunnels still drop connections.
Distribution in Europe has changed. Under the Digital Markets Act, Apple now allows alternative app marketplaces and web distribution in the EU, with its own terms and fees, though most businesses still publish through the App Store and Google Play. GDPR governs every analytics SDK you include, and the CNIL has published recommendations specifically on mobile apps and consent. If the app touches health or payments, extra rules follow.
The cost drivers are the number of screens, whether you build natively or cross platform, the backend, and integrations like payments or maps. Ask a provider who owns the developer accounts, how they handle app store rejections, and what maintenance looks like after each iOS and Android release. Think about the web too. Many Paris services do better launching a responsive web app first to test demand, then building store apps once usage proves the case. A provider who suggests this when it fits is looking after your budget rather than theirs.
Related project
Fighter Cut: A Weight-Cut App That Refuses Unsafe PlansOur own product: Fighter Cut, an iOS weight cut app on React 19 and Capacitor, with The Corner coach app sharing the same Supabase backend.
This is our own list, and we rank ourselves first. The other studios each show an office in or near Paris on their own website and are worth a call if you are comparing mobile app development providers.
Our pick, for obvious reasons. See the case studies and judge the work for yourself.
Paris technology consultancy building web and mobile products, with specialist entities for apps, cloud and data.
Designs and builds mobile apps, web products and business software with a senior product team.
Digital product studio; built a retail mobile app for Iris Galerie.
Customer marketing agency combining data, creative and digital expertise; more marketing than pure app studio.
Answers to common questions about Mobile App Development for Paris businesses.
Complement your Mobile App Development with these related services, all available in Paris with the same quality standards and compliance guarantees.
We offer Mobile App Development across our global network of offices and partnerships. Each location has dedicated expertise in local market requirements and regulatory compliance.
Understanding the return on your Mobile App Development investment is critical. Here's how our Paris clients typically measure success and the results they achieve.
Based on our portfolio of Paris projects, clients typically see full ROI within 4-8 months of launch. The Île-de-France market's strong demand for digital solutions means Mobile App Development investments generate measurable returns quickly when executed with the right strategy and technology stack.
Our engineering team follows battle-tested architecture patterns optimized for Île-de-France's infrastructure and regulatory requirements.
Every Mobile App Development project in Paris is architected for horizontal scaling with containerized microservices, auto-scaling groups, and CDN-distributed assets.
Security is non-negotiable in Paris's regulatory environment. We implement defense-in-depth with RGPD & HDS (Hébergement de Données de Santé) compliance baked into every layer.
We target sub-200ms response times and 90+ Lighthouse scores for all Paris deployments through multi-layer performance engineering.
Data management in Paris requires careful attention to RGPD & HDS (Hébergement de Données de Santé) compliance while maintaining high performance.
From Station F: Le Marais, La Défense, Sentier startups to Luxury & Fashion enterprises, our Mobile App Development expertise has earned the trust of organizations across Île-de-France.
"Frenchy Digital delivered our Mobile App Development project on time and exceeded every expectation. Their understanding of the Paris market and RGPD & HDS (Hébergement de Données de Santé) compliance saved us months of research."
"What sets Frenchy Digital apart is their technical depth combined with genuine understanding of our business. They didn't just build a solution — they became strategic partners in our digital transformation."
Join 100+ businesses in Île-de-France that trust Frenchy Digital for their digital transformation. Get a free consultation and custom project proposal tailored to Paris's market.