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Digital studio · Paris · Nice · Lyon

Digital products that scale your brand.

We design and build mobile apps, premium websites and AI products for ambitious startups and enterprise teams.

0Projects shipped
0Of product craft
0Client satisfaction
iOS mobile app built by 55 agency
Android mobile UI by 55 agency
55 agency digital project — premium website
Studio live · 2026
What we do

One studio,
five superpowers.

From strategy to production, we own the full product lifecycle. With one obsession: craft.

New · 2026

Custom Artificial Intelligence

Conversational assistants, business automations, content generation, RAG on your data, integration of Claude, GPT and Mistral models. We turn AI into real business leverage.

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Mobile apps

iOS, Android, native or cross-platform. From MVP to global scale.

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Premium websites

Marketing sites, e-commerce, SaaS platforms. Performance, SEO, design.

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Product design

User research, UI/UX, design systems. Interfaces people love.

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Cloud & API

AWS / GCP infra, back-offices, secure APIs. Scalable from day one.

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0Projects shipped since 2013
0Product & tech experts
0Offices: Paris, Nice, Lyon
0Clients who recommend us
Our process

From brief to scale.

A proven product methodology at every step. No surprises — just results.

01 — Discovery

Strategic framing

Workshops, user research, product vision and costed roadmap.

02 — Design

UI/UX & prototype

Wireframes, design system, validated interactive prototype.

03 — Build

Agile development

Sprints, weekly demos, code review and automated tests.

04 — Scale

Launch & growth

Production, monitoring, iteration, growth.

Trusted by

What our clients say.

“55 agency turned our idea into a product used by thousands. A sharp team that listens — and ships.”
AL
Alexandre L.CEO · Foodtech
“Design and engineering quality far above anything we've seen elsewhere. Rare and valuable.”
SM
Sophie M.Head of Product · Retail
“Their AI integration into our internal workflows saves dozens of hours every week. Game changer.”
TR
Thomas R.COO · Consulting firm
Ready to start?

Let's talk about your next product.

Free 30-minute call, no strings attached. You leave with a clear, costed view of your project.