[Technology and AI partner]

Your bespoke mobile app, high-performing and widely used

We design and build your mobile app on a single codebase, from integrations with your business systems to publication on the app stores. Your users get a frictionless experience.
250+ mobile apps for iOS and Android live on the app stores
4.7/5 average rating on the App Store and Google Play Store
140+ senior tech profiles from France's top schools: Polytechnique, Centrale and ENS
Talk to an expertSee 5 live mobile apps
Roadstr – car hire mobile app
150+ start-ups, mid-sized companies and large groups have launched or scaled their product on mobile with our teams.
Two people in front of a laptop showing an AI chat interface
On mobile, users have become unforgiving: one bug or one moment of frustration with the interface, and the penalty is immediate. Launching an app means avoiding some specific traps: a user journey designed for the web that doesn't translate well to a phone, security requirements that get underestimated, and the risk of the app being uninstalled after just a few uses.
Arnaud AlbalatCo-founder and CTO
[How we work]

Our method for building a successful mobile app

  • PRODUCT SCOPING
    Step 01

    Priority uses and key screens

    We work with you to define the uses that drive adoption and the screens that support them. This phase focuses the first version on what matters to your users.
  • DESIGN
    Step 02

    Designing the mobile experience

    Our designers create a smooth interface and user journeys you can test on mock-ups, signed off before any development starts. iOS and Android conventions are built in from this stage.
  • DEVELOPMENT
    Step 03

    A single codebase for iOS and Android

    Our engineers build your app in regular iterations and integrate it securely and robustly with your existing tools and IT systems. A single codebase powers both platforms, released together.
  • SECURITY AND COMPLIANCE
    Step 04

    Payments, authentication and sensitive data

    We integrate the sensitive building blocks of your app: online payment, strong authentication, biometric verification and data protection. Then we put them to the test before go-live.
  • PUBLICATION
    Step 05

    Going live on the App Store and Google Play

    We prepare the store listings, handle submission and see the app through Apple and Google review until it goes live, and again with every update.
  • LONG-TERM SUPPORT
    Step 06

    Tracking usage and evolving the app

    After launch, we measure real usage: retention, abandoned journeys and app store reviews. Then we evolve the app at your users' pace.
01/06
[Our team]

An expert team, from consulting to development

We recruit and train engineers, designers and product experts from the best schools. They combine a real understanding of your business challenges with excellence in software engineering. The experts who scope how your app will be used are the same people who design and build it.
Vincent Defrenet
Vincent Defrenet Senior Product Manager
Leads the design of your app, focusing the first version on the uses that drive adoption, all the way to launch on the app stores.
Coline Dorange
Coline Dorange Lead Product Manager
Defines your app's roadmap and coordinates the design and development teams to ship iOS and Android together.
Clément Dourlens
Clément Dourlens Senior Product Designer
Designs mobile journeys screen by screen and tests them on mock-ups before any development starts, so your users keep coming back to the app.
Alexie Romeu
Alexie Romeu Senior Product Designer
Translates your brand identity into mobile interfaces and works closely with the developers to make sure the screens delivered on iOS and Android match the designs.
Surya Ambrose
Surya Ambrose Engineering Manager
Oversees the app's technical quality and structures continuous delivery practices, including app store submission cycles.
Thomas Hallot
Thomas Hallot Tech Lead
Leads development on the sensitive parts of a mobile app: payments, strong authentication, biometric verification and data protection.
Nicolas Descreux
Nicolas Descreux Software Engineer
Builds your app's features and its connections to your existing services, with a very hands-on approach to development.
Benjamin Drighès
Benjamin Drighès CTO
Advises our clients' leadership on mobile technology choices and on the architecture of the services behind the app, and upholds our security and performance standards.
Quentin Massonnat
Quentin Massonnat AI Team Lead
Designs the architecture of the APIs that power your app and oversees critical development work through to go-live.
Félix Monnier
Félix Monnier AI Team Lead
Builds in the AI components that make sense for a mobile app: document recognition, image classification and personalised recommendations.
Clément de Mareuil
Clément de Mareuil Strategy Consultant
Analyses how your customers behave, identifies the use cases that justify an app and scopes the roadmap for your mobile project.
[Our work]

Five mobile apps live with our clients

FINTECH10%

Launching a cashback app from scratch that recognises purchases automatically

10% gives consumers back 10% of what they spend with its partner brands. With no existing tech foundation, we built the app from start to finish: discovery, mock-ups, then full development of the first version. Users photograph their till receipt, document recognition and a classification model identify the eligible products, and the cashback is paid out by bank transfer.
300 000users
25partner brands
4,8on the App Store
10% Logo
VEHICLE HIRERoadstr

Bringing a premium car hire marketplace to mobile

Roadstr is the leading peer-to-peer marketplace for premium car hire, with 30,000 vehicles available. Its service was only available on the web, even though most of its traffic already came from mobile. We designed and built its iOS and Android app, which brings over the platform's key features: sign-up, filtered search and built-in payment. Favourites and notifications keep the relationship going with every user.
130 000users
10 000+bookings a year
85 %of traffic on mobile
Roadstr Logo
CONSUMER SERVICESLa Poste

Bringing the thirty-odd tasks of moving house into a single app

Moving house means around thirty separate admin tasks for an individual. La Poste, the French postal group, asked Galadrim to design and build the app that brings this whole journey into one place: a personalised list of tasks based on the moving date, partner offers available in the app, and progress tracking that can be shared with family and friends. The group runs it all from its own admin area.
30+Admin tasks in one place
La Poste Logo
INDUSTRIAL SOFTWAREDassault Systèmes

Tracking factory KPIs in real time from a mobile app

Dassault Systèmes wanted to give the leaders of its client companies an at-a-glance view of their production from their phone. We built the mobile app connected to its 3DEXPERIENCE platform. It surfaces each site's financial and production KPIs in real time, sends an alert as soon as a critical threshold is crossed, and lets users share a screen in a single tap. Authentication runs on Dassault Systèmes' own system, and users switch from one platform to another without leaving the app.
100 %of production data centralised in real time
Dassault Systèmes Logo
ASSET MANAGEMENTLa Financière de l’Échiquier

Giving an asset manager's clients real-time tracking of their portfolio

La Financière de l'Échiquier manages €25 billion in assets for its clients. In eight weeks, we designed and built the mobile app that gives them real-time access to their wealth: valuation and performance of each account, breakdown by asset class and region, and a line-by-line view of the funds they hold. Every sensitive transaction is protected by strong, biometric authentication.
8 wksto deliver the app
€25bnin assets under management
La Financière de l’Échiquier Logo
0:000:00[what our clients say]Clémence LucCo-founder & CEO
[Why Galadrim?]

Why do companies trust us with their mobile app?

A single codebase for iOS and Android

One team builds both platforms in React Native or Flutter. You launch on the App Store and Google Play at the same time, and every update goes out everywhere in one go.

Design and engineering in the same team

The experts who scope the uses and design the screens sit in the same team as the people who build the app. Your decisions get made faster, and the published app matches the approved mock-ups.

Built for regulated sectors

We build apps that handle payments, financial data and health data. Strong authentication, biometric verification and data protection are dealt with from the design stage.

Support that continues after launch

We track real usage, retention and app store reviews, then we evolve the app. Going live is a starting point, not the end of the engagement.

Let's bring your project to life together

Contact us
[FAQ]

A few questions our clients often ask

Yes. We use React Native to keep a single codebase. You get a consistent experience on iPhone and Android, delivered faster, easier to evolve and within a controlled budget.
Yes. We extend your existing product to mobile by reusing your services and data, as we did for La Financière de l'Échiquier and Roadstr.
A first version in a few weeks or a few months, depending on scope. We agree the full timeline with you upfront.
Yes. We prepare the store listings, handle submission and see the app through Apple and Google review until it goes live. We stay on hand for later updates.
Security is built in from the design stage: strong authentication, biometric verification for sensitive transactions, data protection. We work in regulated sectors such as finance, where these requirements are written into the contract.
Yes. We run a quick technical audit of the existing app, make the foundations more reliable if needed, then build new versions and manage updates on both app stores.
You do. Code, mock-ups and documentation are yours with every delivery. Developer accounts and hosting are set up in your name. The transfer of rights is written into the contract from day one.
Every project is sized to your scope and priorities. Tell us about your context and we'll come back to you within 24 hours with an initial assessment.
[Contact us]

Let's bring your project to life together

We work with every kind of client, across every industry. Whether you are an entrepreneur or lead a large organisation, we put together a team that fits your need.

More than 800 companies have trusted us to build their web, mobile and AI products

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