Custom application

Web & mobile app development in Marseille

When off-the-shelf tools don’t fit the way you work, a custom application saves precious time. We design and build reliable web and mobile applications, designed around your users.

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What an application can change

01

Fewer manual tasks

Bookings, quotes, invoicing or tracking: what used to be done by hand is automated.

02

A better customer experience

Customer area, order tracking, appointment booking: your customers become more independent.

03

A tool that fits you

The application follows your processes, not the other way round, with only the features you need.

04

A foundation that evolves

A modern, documented architecture, ready to welcome new features.

What’s included

  • 01Scoping workshop and requirements definition
  • 02User journeys and mock-ups
  • 03Web development (React, Next.js) or installable app
  • 04User accounts, roles and security
  • 05Online payment and third-party integrations
  • 06Testing and acceptance with your teams
  • 07Hosting, deployment and monitoring
  • 08Maintenance and new features

0103

Useful applications, not overengineered monsters

A good application project starts with a simple question: what problem are we trying to solve? We begin with a scoping workshop to define a useful first version, delivered quickly, then enriched based on real feedback from your users.

This approach limits risk and the initial budget, while letting you validate the value of each feature.

0203

Web, mobile or both?

A web application runs in the browser, on desktop and smartphone alike, without going through the app stores. It can also be installed on the home screen like an app. For needs that require a presence on the App Store and Google Play, we point you to the most suitable mobile solution.

0303

Example projects

A booking and payment system for a self-service business, an ordering portal for resellers, a custom accounting tool, a customer area to follow your files: every application is designed around how your teams and your customers actually work.

Method

How your project unfolds

  1. 01

    Free audit

    We analyse your current website, your visibility on Google and your local competitors. You leave with concrete recommendations.

  2. 02

    Strategy & quote

    Pages, features, target keywords: you receive a detailed quote and a realistic schedule, with no surprises.

  3. 03

    Design & development

    Mock-ups approved with you, then custom development. Regular check-ins, so you can follow progress at every stage.

  4. 04

    Launch & follow-up

    Launch, a walkthrough of your admin area, then monitoring of rankings and performance to keep your website improving.

FAQ

Frequently asked questions

How much does developing an application cost?+

The budget depends mainly on the number of features. That’s why we start by defining a focused first version, priced precisely after scoping.

Will I own the code?+

Yes. The source code and access belong to you, and the application is documented so it can evolve.

Can you take over an existing application?+

Yes, after an audit of the existing code to assess whether it’s better to evolve it or rebuild it.

Do you provide maintenance?+

Yes, with a maintenance contract covering security updates, monitoring and small changes.

Blog

Further reading

All articles →
E-commerce

Headless Shopify: benefits, costs and when to take the plunge

Shopify theme or headless store? What decoupling really brings, what it costs, the pitfalls to avoid and the signs that it’s time to go headless.

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Advice

Headless web agency in Marseille: what going headless changes for your website

Faster, more secure, better ranked: what a headless website brings to a Marseille business, what it costs, and how to choose the agency that will build it.

· 5 min

E-commerce

Headless Shopify with Next.js: collections, products, cart and orders via the API

Keep Shopify for products, stock and payment, and build a custom store in Next.js. Architecture, Storefront API, cart, order creation, SEO and costs.

· 5 min

Services

Our other services

A complete project? We coordinate everything: website, SEO, e-commerce and business tools.

Free audit

Your website could bring you more customers.

Get a free audit of your website: speed, SEO, how you rank against your Marseille competitors, and the priority actions to boost your visibility.

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  • Reply within 24 hours
  • Free audit, no commitment
  • Meetings in Marseille, Brussels or by video call