Leading iOS App Development Companies in France (2026)

You need an iOS development partner that combines native Swift expertise, tight GDPR compliance, and proven App Store approvals for complex European-market apps. iOS App Development Companies in France vary widely on those points, so compare technical depth in Swift and Objective-C, UX design that follows Apple Human Interface Guidelines, automated test coverage, CI/CD for frequent releases, and clear App Store submission history. GDPR fines can reach €20 million or 4% of global turnover, so data handling and consent flows are essential evaluation items.

SoftPro appears first as the featured partner for this roundup and serves buyers across France as an international partner. When you screen providers, check team composition and seniority, pricing model and delivery cadence, security and data-residency controls, SLAs for post-launch fixes, and domain experience for regulated sectors because insufficient domain knowledge often increases compliance review time and raises costs.

Quick comparison: iOS developers France 2026

1. SoftPro

As our featured, author-selected international partner for Leading iOS App Development Companies in France (2026), SoftPro is listed first for EU buyers who need a partner that can translate web and cloud platforms into mobile-ready products. The company serves clients across the European Union from a Warsaw, Poland base, and the official site does not show specific native iOS or Swift case studies.

SoftPro’s site shows adjacent strengths relevant to mobile programs: progressive web app development built with React and Node.js, full-stack backend work on .NET, ASP.NET Core and C#, and cloud deployments on Microsoft Azure and AWS. The team also documents AI work that includes LLM integration and retrieval-augmented generation, and the firm offers ongoing support and maintenance for delivered software.

Key Highlights

• Website provides a French-language version and multiple other language options to support EU clients.
• Published case studies listed on the site include Business Portal, CRM/HRM, Platform SAAS ETL, Support System and a social network for product promotion.
• A client testimonial specifically references an Umbraco website project, demonstrating CMS experience.
• The company maintains an active blog with recent industry posts dated October 21, 2026.

Services

• Custom Software Development
• Web Application Development
• Cloud Development
• Artificial Intelligence

Contact Information

Website: soft-pro.pl

Phone: +48 571 282 759

Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401

LinkedIn: www.linkedin.com/company/soft-pro-pl

2. Openium

Openium is a Clermont‑Ferrand mobile-app agency founded in 2007 that designs and builds native iOS applications in Swift for iPhone, iPad and Apple Watch while delivering corresponding Android apps when projects require cross-platform coverage. The firm documents use of Kotlin Multiplatform to share business logic across platforms and presents UX/UI design, backend/frontend and ongoing maintenance capabilities on its site.

To evaluate Openium for iOS projects, review the named iOS team and project examples on the “Réalisations” page, confirm Swift-based implementation in case studies, and examine their accessibility, audit and TMA (third-party maintenance) offerings listed in the services and contact pages. Also check the certifications and corporate pages for evidence of process maturity before a procurement decision.

Key Highlights

• Openium joined the international engineering and consulting group HOUSE OF ABY in 2023.
• The company displays sustainability and RSE credentials on its site, including ISO 14001 certification and an EcoVadis Gold medal (Top 5%).
• The site lists professional certifications held by staff, including Professional Scrum (PSM), Professional Scrum Developer, SAFe and ITIL4, which support agile delivery and product management practices.
• Openium publishes sector experience that explicitly includes IoT and wearable projects in addition to industry, pharma/health, energy and agroalimentaire.

Services

• Native iOS (Swift) development
• Kotlin Multiplatform integration
• UX/UI design
• Support & TMA

Contact Information

Website: www.openium.fr

Phone: +33 4 82 53 01 10

Email: contact@openium.fr

Address: 15 rue Jean Claret, 63000 Clermont‑Ferrand

([openium.fr](https: //www.openium.fr/contact/))

3. Lunabee Studio

Lunabee Studio is a French mobile app studio operating from the French Alps and Lyon. Since 2010 they have built premium native iOS and Android apps with Swift and SwiftUI, and they developed France’s TousAntiCovid app, which the site reports has more than 62 million downloads.

To evaluate them for iOS work, ask for concrete SwiftUI code samples, release notes or screenshots showing App Store features, and evidence of accessibility testing because the site emphasizes security, privacy and accessibility as core capabilities. Request references that demonstrate short-cycle native delivery and app-store performance before you proceed.

Key Highlights

• 2.5M users in 130 countries for their oneSafe app, per the company site.
• Their apps have been featured by Apple and Google across 80+ countries, according to the site.
• AppSec experience dating to 2011; the site highlights oneSafe and collaboration with Inria on cryptography and security.
• The company states it formally invested in accessibility skills starting in 2020 to support users with visual impairments.

Services

• iOS native development
• Android native development
• App security & cryptography
• Accessibility & privacy consulting

Contact Information

Website: lunabee.studio

Email: studio@lunabee.com

Address: Middle of the French Alps; often present in Paris (close to Station F)

4. BeApp

Beapp builds mobile and web applications from a Nantes base and lists iOS app development among its mobile platforms. The firm's La Provence case study documents a mobile release for Android and iOS and records the technical choice of Kotlin Multiplatform with native Swift components for the iOS front-end.

When assessing Beapp for iOS app development, review the La Provence case study for concrete stack choices, front‑mobile delivery notes, and the team’s technical specifications for webservices. The site also publishes product and mobile resources and presents a short-iteration delivery process described as Discovery → Build → Run, plus prototyping and a roadmap phase to validate scope before development.

Key Highlights

• Over 150 digital projects listed on the site.
• Client relationships stated since 2011.
• The agency created a dedicated AI entity named Edison IA to support AI integration and tooling.
• A referenced project (Ask Info) includes SDK work for connected-vehicle platforms with iOS CarPlay and Android Auto.

Services

• Product design
• Mobile development
• Web development
• AI & Data

Contact Information

Website: www.beapp.fr

Email: contact@beapp.fr

Email (careers): job@beapp.fr

Address: 3 Place de la Petite Hollande, 44000 Nantes

5. Theodo Apps

Theodo Apps is the mobile practice of Theodo Group that designs and ships iOS and cross-platform mobile products. The company’s public offers page and mobile case studies show a portfolio of more than 100 mobile applications and multiple shipped projects that use React Native and Expo alongside native iOS work.

When you evaluate Theodo Apps for iOS development, review their named case studies and technology pages. MADE.com and Project Come Up (PCU) demonstrate React Native and Expo deliveries to the App Store, while France Identity and a telecommunications client document native iOS work and production metrics you can audit.

Key Highlights

• France Identity: delivered over 350,000 digital vehicle registration certificates in 2 months with a 20% improvement in technical quality.
• MADE.com case study: recorded about 130,000 first-month app visits and an App Store rating of 4.6 after a React Native rebuild.
• Major telecom client: reported a 70% reduction in production anomalies, 99.8% crash-free users, support for 1.5M active users, and capacity for peaks of ~10,000 simultaneous users.
• Admiral / Veygo engagement: first mobile release delivered in 7 weeks and contributed to over 1 million policies sold.

Services

• Mobile applications
• React Native & Expo
• Native iOS (Swift)
• Kotlin Multiplatform

Contact Information

Website: www.theodo.com

Phone: +33 (0)1 53 24 00 83

Email: contact-apps@theodo.com

Address: 1 rue de Saint-Petersbourg, 75008 Paris, France

6. Galadrim

Galadrim is a French product engineering firm that builds web, mobile and AI products and lists mobile applications among its deliverables. The firm cites MyDataRun as a delivered mobile product and highlights work for Universal Music France that supports 300,000 monthly visits, but the official site does not name iOS-specific frameworks or link App Store listings.

For buyers evaluating Galadrim for iOS app development, the site documents adjacent technical and delivery signals you can verify: tailored, team-on-demand engagement models with offices in Paris, Lyon and Nantes; headless CMS work using Strapi; and examples of large-scale user metrics and multi-organization platforms. To confirm native iOS capability, ask for App Store links, platform references, or sample builds tied to Swift or Objective-C work.

Key Highlights

• Founded in 2017 and described as a tech & AI product agency.
• Claims more than 800 client organisations have been accompanied.
• Lists a workforce of 180+ collaborators on the official site.
• Reports €23M revenue in 2026 and +60% growth in 2026 on the company pages.

Services

• Mobile applications
• AI & machine learning
• Product strategy
• Headless CMS (Strapi)

Contact Information

Website: galadrim.fr

Email: hello@galadrim.fr

Email: contact@galadrim.fr

Address (Paris): 2 rue Neuve Saint-Pierre, 75004 Paris, France

Address (Lyon): 3 rue de la République, 69001 Lyon, France

Address (Nantes): 10 rue Voltaire, 44000 Nantes, France

LinkedIn: linkedin.com/company/galadrim

7. Digital Unicorn

Digital Unicorn is a French digital agency that designs and builds custom web and mobile applications. The homepage features multiple mobile projects — Book Village, Life In, Livmed’s and a mobile game — and a client testimonial explicitly credits the team with delivering a PWA for an existing product.
The site does not list native iOS toolchains like Swift or Objective‑C by name. Buyers evaluating Digital Unicorn for iOS work should review individual project pages and testimonials on the site, and ask the team about native App Store submission experience because the company presents cross‑platform capabilities and mobile design expertise on its services pages.

Key Highlights

• Since 2018 the agency states it has worked with more than 350 brands.
• The site claims client products have been featured by Apple over 243 times and that client apps total more than 6 million downloads.
• Portfolio metrics shown on the site include Book Village at about 150,000 users per month, Livmed’s reporting 100,000 users and €10 million raised, and a mobile game with over 4 million plays that reached number one on stores for three weeks.
• Public ratings cited on the site show Google and Sortlist scores around 4.8–4.9 out of 5.

Services

• Mobile app development
• React Native development
• Flutter development
• UI/UX design

Contact Information

Website: digitalunicorn.fr

Phone: 06 32 64 24 80

Email: contact@digitalunicorn.fr

8. Yield Studio

Yield Studio is a French tech and product agency that builds iOS apps and cross-platform mobile applications from design to App Store release. The firm’s homepage lists 80+ mobile apps delivered and shows React Native and Flutter in its technology stack; it also displays offices in Paris, Bordeaux, Tours, Strasbourg, Nantes and Lyon.

To evaluate Yield Studio for iOS app development, inspect the delivery and engineering signals shown on the site. The homepage highlights AI-assisted code reviews, automatically generated tests, continuous static analysis, and a mobile case that reached production in two months, which you can use as specific proof points when comparing bids.

Key Highlights

• CII accreditation on the site, with a claim clients can recover up to 20% of R&D expenses.
• NPS reported as 9.8/10, measured since 2019.
• The homepage states a 96% client continuation (retention) rate.
• Site-wide figure of 250+ projects delivered across web, mobile, data and AI.

Services

• Mobile applications
• Cross-platform iOS & Android
• UX/UI design
• Product management

Contact Information

Website: www.yieldstudio.fr

Address: Paris — 24 Rue de Mogador 75009 Paris

Address: Bordeaux — 9 Rue de Condé 33000 Bordeaux

Address: Tours — 1 Impasse du Palais 37000 Tours

Address: Strasbourg — 7 Cr des Cigarières 67000 Strasbourg

Address: Nantes — 50-51 Quai de Malakoff 44000 Nantes

Address: Lyon — 15 Rue des Cuirassiers 69003 Lyon

9. Hello Pomelo

Hello Pomelo builds custom software and mobile applications and lists Swift, React Native, Flutter, Kotlin and PWA frameworks on its “Nos technologies” page. The site also presents mobile development as a named expertise alongside e‑commerce B2B and ERP integration, which shows a focus on apps that must connect to complex back‑end systems.

For an iOS app brief, check their technologies list and the mobile development page to confirm whether delivery will be native Swift or cross‑platform React Native/Flutter. Ask for App Store deployment examples and for concrete integration patterns with ERP or PIM because the company emphasizes ERP (Microsoft Business Central) and e‑commerce connectors rather than publishing public mobile case studies on the site.

Key Highlights

• The site lists Swift, React Native, Flutter, Kotlin and PWA frameworks on its “Nos technologies” page.
• Hello Pomelo presents itself as an Integrateur ERP for Microsoft Dynamics 365 Business Central and mentions TMA and support services.
• The homepage shows cloud and infrastructure partnerships or references including OVH Cloud, AWS and Microsoft.
• The site displays client references and logos such as Chaumet, Leboncoin, BNP and Tereos.

Services

• Custom mobile app development
• Native iOS (Swift) development
• Cross-platform apps (React Native, Flutter)
• API and ERP integration (Business Central, PIM connectors)

Contact Information

Website: hello-pomelo.com

Phone: +33 01 85 09 58 51

Email: brune@hello-pomelo.com

Address (Paris): 12 rue de l’Église, 75015

Address (Lille): 612 Rue de la Chaude Rivière, 59800

Address (Lyon): 4 place Amédée Bonnet, 69002

Address (Marseille): 18 Rue Neuve Sainte-Catherine, 13007

Address (Barcelona): C/ del Bruc, 145, Eixample, 08037

10. ZOL

ZOL is a French web and mobile agency that builds iOS apps and Progressive Web Apps and lists native iOS development in Swift and Objective‑C alongside cross‑platform options like React Native and Flutter.

Their PWA content calls out offline-capable pages and push-notification support, and the mobile pages state they handle publication to the Apple App Store and post-launch maintenance.

Key Highlights

• Founded 2005 with RCS listing shown in the site footer (RCS Lyon B 481 577 286).
• Client references named on the site include Mouratoglou Academy, Vie & Véranda, and Gamm Vert.
• The site explicitly lists services for proof of concept (POC) and MVP work, publication to Apple and Google stores, and ongoing maintenance.

Services

• Proof of Concept & MVP
• Maintenance & code takeover
• Hybrid migration and refactor projects

Contact Information

Website: zol.fr

Phone: 04 28 29 52 36

Email: bonjour@zol.fr

Address: 22 rue Robert, 69006 Lyon

Address: 226 boulevard Voltaire, 75011 Paris

LinkedIn: linkedin.com/company/zol-agence-digitale-lyonnaise

([zol.fr](https: //zol.fr/agence-digitale/agence-pwa-ou-la-nouvelle-generation-de-solutions-digitales))

11. 40/60 Studio

40/60 Studio is a French UX and product studio that designs and builds mobile applications and SaaS products, including iOS app development, and the site explicitly lists mobile app delivery. The portfolio highlights include a CarPlay and Android Auto project for Stellantis and product design work for TF1+, showing experience with iOS client-facing features and multi-platform app delivery.

To evaluate 40/60 for iOS app development, request technical scope and delivery examples tied to the Stellantis CarPlay prototype and the TF1+ product engagement that spans apps and TV platforms. The site documents user research, testing, agile product management, and product delivery capabilities, and it does not mention offline-first architectures, service workers, or Progressive Web App work.

Key Highlights

• Offices listed in Paris (Le Cargo, 157 Bd Macdonald, 75019 Paris), Nantes (4 Rue Racine, 44000 Nantes) and Lyon (Montplaisir, 69008 Lyon).
• Worked on a Stellantis engagement that explored 6 CarPlay and Android Auto concepts.
• Reports 25+ design and technical talents and more than 180 projects launched since 2016.
• Sortlist client rating shown as 4.95 from 32 reviews on the site.

Services

• Product design (UX/UI)
• Mobile & SaaS product delivery
• User research & testing
• Web & app development

Contact Information

Website: www.40-60studio.com

Address: Le Cargo, 157 Bd Macdonald, 75019 Paris

Address: 4 Rue Racine, 44000 Nantes

Address: Montplaisir, 69008 Lyon

12. AquilApp

AquilApp is a Nantes-based development firm that builds bespoke web and mobile applications for clients across France. Their services page explicitly lists native, hybrid and cross‑platform mobile development and Progressive Web Apps, which indicates they deliver both native iOS work and PWA options.

Buyers evaluating iOS app vendors can judge AquilApp by reviewing the agency’s case studies and technology pages linked on the site and by checking mobile project write-ups for evidence of native delivery or PrestaShop integration. The site publishes dated client testimonials and project write-ups that let you verify platform targets, delivery cadence, and measured outcomes before you engage.

Key Highlights

• Offices and local presence across many French cities, including Paris, Nantes, Brest, Toulouse, Bordeaux, Lyon, Nice, Marseille, Montpellier, Rennes and Strasbourg.
• Client roster displayed on the site includes Airbus, Carrefour and LafargeHolcim, shown alongside mobile and web project references.
• Case study “PrestApp” is described as a mobile app and PWA solution for PrestaShop that targets Android and iOS.
• A published project result on the site reports a Google Apps Script automation that saved 200 hours in two months, showing measurable outcomes in client testimonials.

Services

• Native mobile apps
• Hybrid & cross-platform apps
• Progressive Web Apps (PWA)

Contact Information

Website: www.aquilapp.fr

Phone: +33 02 28 06 30 68

Email: contact@aquilapp.fr

Address: 275 boulevard Marcel Paul, 44800 Saint Herblain, France

13. NetDevices

NetDevices is a Paris-based web and mobile agency with around twenty people and a remote-first organization. The firm presents over 20 years of experience building native iOS and Android apps and lists React Native, ReactJS, NodeJS, Python, VueJS and Docker on its technologies pages while showcasing mobile projects such as Mektoube, PronosDirect and Alobees.

When you evaluate NetDevices for an iOS app, review their mobile portfolio pages and the detailed blog posts that document recent projects like Ever Lasting and LFP Interview, and verify the Agile delivery and cloud deployment capabilities described on their team and services pages. Request their MVP Studio proposal to see a time-boxed plan, the chosen technology (native or cross-platform), and evidence of production deployments and long-term maintenance.

Key Highlights

• Approved for the French Innovation Tax Credit (Crédit d'Impôt Innovation, CII) and reports more than 10 innovative projects launched in 2025.
• Offers an "MVP Studio" service that prototypes products using nocode, JavaScript, or Python.
• Markets R&D products named Web2Mobile and Sharry developed from internal research efforts.
• The site technology listings include Flutter and Capacitor in addition to React Native and Node.js.

Services

• iOS App Development
• Android App Development
• MVP Studio
• UX/UI Design

Contact Information

Website: www.netdevices.fr

Address: 130 RUE DE LOURMEL - 75015 Paris - France

14. Adeliom

Adeliom is a French digital agency headquartered in Strasbourg with an advisory office in Marseille that publishes a dedicated portfolio of mobile projects. Their technologies page lists React Native and Flutter for deploying iOS and Android apps from a single codebase, and their client case pages show named mobile projects for CNRS, Netika, Gaz Naturel R-GDS and Distribus.

To evaluate Adeliom for iOS app development, review the "Application mobile engageante" case collection on their site where 14 mobile projects are grouped and check their technical pages for evidence of back-office integrations with Symfony or headless CMS like Strapi. Their React Native page also describes their delivery method, mentioning strategic cadrage, SI interfacing, bespoke development and continuous improvement as part of the workflow.

Key Highlights

• Founded in 2010 and listed as Adeliom SAS in the site’s legal notice.
• Site states a team of “+30 experts” and a 4.9/5 Google rating.
• The technologies index cites over 200 projects completed across web, e‑commerce and mobile.
• Technology tallies on the realizations page show React Native used in 10 projects and Flutter used in 1 project.

Services

• React Native mobile apps
• Flutter mobile apps
• Mobile product design & UX
• Back-end integration (Symfony, Strapi)

Contact Information

Website: adeliom.com

Phone: 03 67 10 08 49

Address: 3 place de Haguenau, 67000 Strasbourg

Address (Adeliom Conseil): Les Docks-Atrium 10.6, 10 Place de la Joliette, 13002 Marseille

LinkedIn: linkedin.com/company/adeliom/

15. Valtech (France)

Valtech is a global digital consultancy with a principal establishment in Paris that publishes multiple mobile case studies on its site. The site highlights native and cross-platform mobile work with measurable outcomes, for example Discover’s customer app moving to a 4.5 App Store rating and awards and a retail rebuild reporting 99.5% crash-free sessions for Android and iOS.

For iOS app development, buyers should review Valtech case-level technical details and performance metrics on the site. Relevant evidence includes native iOS engineering and automated Touch ID/Face ID testing in banking work, cross-platform executive mobile work like Unilever OneView, and dedicated benchmarking reports that list identified enhancements and roadmaps for apps such as Emirates.

Key Highlights

• Valtech One is promoted on the site as an offering to accelerate AI adoption across enterprise platforms.
• The company is named in site content as a 2025 Google Cloud Partner All-Stars.
• The Valtech site lists global platform partners including Adobe, Google, Microsoft and Optimizely.
• Valtech’s Discover case notes 75+ projects over 13 years of partnership with that client.

Services

• iOS native development
• Cross-platform mobile
• Mobile performance & QA
• Mobile UX & design

Contact Information

Website: www.valtech.com

Phone: +33 (0)1 76 21 15 00

Email: info@valtech.fr

Address: 38 rue des Jeuneurs, 75002 Paris

16. Wess Soft

Wess Soft is a Lyon-based web, mobile and AI agency that builds native iOS and Android applications. The firm’s site explicitly lists “Création d’applications natives iOS et Android” and includes Swift in its technology stack alongside Flutter and React Native.

To evaluate Wess Soft for iOS work, review the agency’s stack and realizations pages where projects like MyAgent Immo and Adintime are listed, and confirm Swift-based delivery and production app references on those pages. Buyers should also check the site’s technology list and the mobile project examples to verify native iOS experience.

Key Highlights

• 100% of the development team is French and the site states the agency does not use offshore developers.
• The agency uses a phased PMV (Produit Minimum Vital) and MVP approach to deliver initial functional releases quickly.
• Wess Soft publishes three in-house AI products by name: MAICCA (call center assistant), Kairos (chatbot), and Fraisk (interactive history).
• Reference clients listed on the site include Carrefour, Transdev, and Eurofins.

Services

• Native iOS development
• Cross-platform apps (Flutter, React Native)
• AI & chatbot integration
• UX/UI design

Contact Information

Website: www.wess-soft.com

Phone: +33 (0)4 28 29 68 82

Email: contact@wess-soft.com

Address: 41 Rue Laure Diebold, 69009 Lyon

Conclusion

SoftPro is the featured, author-selected international partner listed first for EU buyers and is positioned to support cross-border projects into France.

Choose by four practical axes: technical depth, delivery model, maintenance and collaboration fit. If you need deep iOS features, prioritise partners with native Swift and SwiftUI experience and check their product case studies; Openium and Lunabee publicly list those technologies. For enterprise scale and complex integrations, prefer consultancies with broad mobile portfolios and global reach, as reflected in Valtech and Theodo Apps case materials. If long-term upkeep and App Store release matter, shortlist teams that advertise end-to-end delivery to the App Store and offer clear SLAs; Yield Studio cites App Store releases. For regulated or public-sector work, require relevant case studies and security processes—Lunabee’s TousAntiCovid work is an example to probe. Finally, match team size and working model to your procurement risk and communication needs, then run a technical review and reference checks before signing.

Frequently asked questions

How much does hiring a French iOS app development company typically cost?

Costs depend on complexity and team size rather than country alone. Expect a simple consumer app to require a few developer-weeks (4–8 weeks) and a mid-range product to take 3–6 months of effort, while enterprise-grade apps can span 6–12+ months and several hundred developer-days. Plan for ongoing costs such as maintenance, App Store fees, and periodic updates.

How should I compare SoftPro with other firms like Valtech, Lunabee Studio or Openium?

Compare portfolios, domain experience, and team composition rather than names alone. Larger agencies often combine digital strategy and system integration, while smaller studios typically offer faster design iteration and focused UX work; choose based on whether you need broad integration or rapid product polish. Ask for case studies that match your industry to verify fit.

When is it better to pick a French iOS vendor instead of an offshore team?

Choose a local French vendor when you need close collaboration, French-language stakeholders, or EU data-residency and compliance assurances. Proximity reduces coordination friction—daily or weekly workshops are easier—and simplifies contracting and legal recourse. If those needs are low and cost is the priority, offshore teams can still be a viable option.

What is the typical development process and timeline with these companies?

Most firms follow discovery, prototyping, development, QA, and deployment phases with Agile delivery. Discovery and prototype work usually takes 2–4 weeks, an MVP often ships in 8–16 weeks, and a full product typically takes 6–12 months depending on scope. Insist on sprint plans and sprint demos to keep timeline visibility.

What common risks should I watch for when hiring an iOS app company in France and how do I mitigate them?

Common risks include scope creep, unclear acceptance criteria, and insufficient post-launch support. Mitigate by defining milestones and payments every 2–4 weeks, using written acceptance tests for each feature, and contracting a maintenance SLA for updates and security patches. Require code reviews or a short technical audit to reduce delivery surprises.