Custom mobile application

Build a mobile app that's
smooth, useful, and remarkable.

Centralys designs and develops your custom mobile app for iOS and Android: a premium interface and an architecture built to scale.

User profileMain dashboardStatistics
The reality

A mobile app shouldn't just exist.
It must be used.

01

Frequent usage

An app makes sense when your users come back often: book, order, communicate.

02

Smooth experience

On mobile, every action must feel simple. Navigation, buttons, forms — all tuned for real-world use.

03

Native features

Push, camera, geolocation: a native app enables what a simple website never can.

04

Customer retention

A well-designed app builds habit and dramatically increases interaction frequency.

05

Performance & stability

A slow or unstable app gets deleted fast. Technical quality is the #1 adoption driver.

06

Maintenance & evolution

An app lives over time: iOS/Android updates and continuous feature improvement.

Design & Tech

We build your app as a real product.

We support you from the first idea to publishing on the stores.

01

Premium mobile UX

Every screen is designed to be clear and fast on a smartphone.

02

Robust development

A reliable, performant, and secure application.

03

Back-office & scalability

A complete admin panel to drive your data autonomously.

Centralys app design studio

The essential features.

User accounts

Sign-up, secure login, roles and permissions.

Push notifications

Targeted alerts and reminders for engagement.

Security

Encryption and GDPR compliance.

Payments

Stripe, Apple & Google Pay integrated.

Admin back-office

Full management of users, content, and statistics.

Geolocation

Maps and proximity services.

Messaging

Real-time chat and interactions.

API first

Sync with your existing tools (CRM, ERP).

Analytics

Precise tracking of usage and retention.

UI / UX Design

Interfaces that make users want
to use your app.

Onboarding screen
Onboarding
Dashboard screen
Dashboard
Marketplace screen
Marketplace
Product detail
Detail
Notifications screen
Notifications
Our process

From idea to published app.

01

Discovery call

Understanding your audience and business model.

02

Functional scoping

Defining flows and product logic.

03

UX/UI mockup

Visualizing the app before development.

04

Development

Coding the screens, API, and back-office.

05

Publication

Going live on the App Store and Google Play.

Industry FAQ

Frequently asked questions.

Everything you need to know to launch your mobile app project.

The budget depends on the number of screens, features, design, back-office, integrations, and complexity level. After an initial conversation, we can give you a clear and structured estimate.
A first version can be developed in a few weeks to a few months depending on scope. The goal is to launch a useful version quickly (MVP), then improve it based on user feedback.
Yes. We develop apps compatible with iOS and Android, with a technology adapted to your project: React Native, Flutter, or native development depending on specific performance needs.
A responsive site adapts to mobile screens, but an app enables a more direct experience: push notifications, native geolocation, camera access, offline use, better retention, and a smoother feel.
An app is relevant when your users need to come back often: book, order, track activity in real time, receive notifications, manage a personal account, or use a service regularly.
Yes. It's a key step of our process. We design a complete UX/UI mockup to visualize the screens, user flows, and the overall mobile experience before writing a single line of code.
Yes. We systematically create a secure admin space allowing you to manage users, content, orders, push notifications, and view your real-time statistics.
Yes. We integrate the leading solutions like Stripe, Apple Pay, and Google Pay to handle subscriptions, in-app purchases, paid bookings, or automatic billing systems.
Yes. We integrate smart push notification systems to send reminders, proximity alerts, order confirmations, or targeted marketing messages to keep your users engaged.
Yes. We can audit an existing app to stabilize its code, improve its design (UI), fix critical bugs, or add new functional modules to modernize it.
Yes. We connect your app to your current ecosystem via custom APIs: CRM (Salesforce, Hubspot), ERP, business tools, external databases, or third-party SaaS platforms.
Yes. We support you from A to Z: developer account creation, marketing visuals, review compliance, and managing the submission process all the way to going live.
The choice depends on your goals. React Native and Flutter let you launch faster on iOS and Android with optimized budget. Native is preferred for extreme graphics performance or very complex hardware access.
Yes. An app is a living product. We plan an evolutive architecture from the start to allow future feature additions and ensure necessary security updates.
Absolutely. We don't just code: we help you prioritize features, define your MVP (Minimum Viable Product), and structure your customer journeys to maximize retention.

Have an app idea?

Let's turn it into a concrete mobile product with a professional mockup.

Free 30-min call

Ready to transform your business?

Book a free 30-minute discovery call to discuss your challenges and see how we can help.

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