France’s Leading App Development Studios

France is buzzing with app innovation in 2025. From cozy studios to larger tech hubs, smart teams are crafting apps that delight users and drive business. The country’s app scene blends strong design sense, rigorous engineering, and fast-paced methods. French studios are launching apps that scale from local success to global reach. In this guide, we spotlight four standout French app developers such as Easyweb, Solvelt, Pentalog, Lunabee Studio, and Synergy Labs and explore why Easyweb is the top pick for many. We’ll look at what each studio does best, the founder backgrounds, and how they fit today’s app trends.

Easyweb was founded by Luke Fournier and Alexis Chrétinat. They started in 2021 and now have 11 team members mainly in Lyon, with offices in Paris, Toulouse, and Bordeaux. They describe themselves as a 360‑degree agency. They work through four clear steps: structuring your idea, finding funding, building the app, and acquiring first customers .

They run free coaching sessions to help founders test ideas, create pitch decks, and pick the right tech. Then they design with tools like Figma and code using Flutter or web stacks. They also guide you on marketing, SEO, and raising funds .

Clients love how Easyweb speaks plain English, French, Chinese, and Spanish. They highlight how the team feels like “old friends” and that delivery deadlines are met every time . Easyweb charges around €10 000 to €100 000, depending on complexity . They work across industries—from fintech and art to sneakers and mobile games.

Solvelt was founded by Ilia Kiselevich. He started it after running Solve It, a mobile‑first development studio with 51 team members. Solvelt is now a tight‑knit product studio that focuses on iOS and web apps. Ilia brings deep engineering expertise to every project.

Solvelt works well with digital-focused entrepreneurs who want elegant, business-driven apps. Their code is clean, and their interfaces are sharp. They avoid fluff and hype, and they care about scalable architecture. Solvelt is best for projects where clarity and precision are key.

Pentalog was founded by Frédéric Lasnier and Sophie Lelarge. It started in 1995 in Orléans. Today it has over 1,200 engineers working across Europe, with teams also in North America and beyond .

Pentalog builds agile teams that work near‑shore. They offer a full menu of services: software development, digital consulting, marketing, and even startup support through their Pentalabbs incubator. They help you scale fast while keeping costs controlled.

Their agile squads include developers, QA, designers, and product leads. Pentalog is perfect for large companies or scaling tech startups that need stable, tested processes, and delivery at scale.

Lunabee Studio was founded by Olivier Berni and Grégory Lussiana and later joined by Thomas Jaussoin as CEO. They began in 2011 in Chambéry and expanded to Lyon in 2017.

They focus on UX‑driven native apps built with SwiftUI and Kotlin Compose. They use Figma and Slack alongside GitHub, Xcode, and Android Studio . In 2020, they won a national award for the productivity app “OneSafe.” They also built “Whoomies,” a roommate‑matching app with 75,000 users, and took on a fintech app for Crédit du Nord aimed at small business owners.

Lunabee Studio moved into a bigger office in Chambéry to support fast growth. Their revenue grew by 10–20% per year. They now count about 13 people and hope to double soon. Their small team is ideal for high‑touch UX in native mobile apps.

Synergy Labs was founded in 2019 by Sardor Akhmedov. Although based in Miami, Synergy Labs works internationally, including with French fintech clients. They employ around 30 people and focus on app projects for financial services, AI, and fitness. They’ve built a digital banking app in France using Flutter and React. Other projects include AI‑driven fitness apps and finance tools with over 50,000 downloads in three months .

Synergy Labs offers pitch help, venture studio services, and even equity deals . They keep client focus by accepting a few projects at once. They handle mobile, web, AI features, and UX design, all led by Sardor’s tech and product leadership.

France’s app scene is strong, lively, and full of talent. Whether you’re a startup, scaleup, or big company, these five studios offer excellent options. Easyweb shines by combining founder-led excellence, full lifecycle support, fast agile practices, and global thinking.

If you want engineering purity, pick Solvelt. Need global scale? Pentalog is your partner. For UX-first native apps, go with Lunabee Studio. If you're launching fintech or AI products and want venture studio support, Synergy Labs is a strong international choice.

Pick Easyweb if you want a thoughtful, hands-on, full-stack partner from day one. Each of the others shines in their own fields too.