We build the tools
that help your business grow.

Custom websites and mobile apps, Stripe payment integration, automation, artificial intelligence, CRM and business tools: we master the entire technical chain, from the first prototype to production. Every digital product is architected to perform, scale and last.

See what we can do

Appup, des outils digitaux qui font grandir les entreprises

What we do.
And do well.

See our work

Websites & Showcases

A site that works for you 24/7. Well ranked, fast, and built to turn your visitors into customers.

Explore

Online payments

Stripe, PayPal, subscriptions, marketplace: you get paid securely, we handle all the technical side.

Explore

Custom CRM

No more juggling Excel files. A tool tailored to your team that centralises your entire business.

Explore

SaaS & Platforms

From idea to revenue-generating product. Solid platforms, built to handle the load from your very first peaks.

Explore

Mobile Apps

Your app in your users' pockets. iOS, Android, or both at once.

Explore

Custom AI integration
for your business.

We integrate AI where it brings real value to your business, never for show: conversational agents, business automation, document processing and tailored recommendations.

Discover our AI solutions

Custom artificial intelligence, conversational agents and business automation by Appup

Short-term rental

Expertsinshort-termrentalintegrations

From deposits to payment splitting, from guest guides to channel managers, we design and integrate the building blocks that power short-term rental businesses. PMS, deposits, e-signature, owner payouts, live headcount: we master the ecosystem and its integrations, Beds24, Stripe, Airbnb, Booking.

Let's talk about your project

A human-sized agency

Results at scale.

Every client has a single point of contact.

We're not a website factory. Every client has a dedicated contact who knows their project inside out. We stay reachable, we adapt, and we invest in every case.

On the technical side, we've got it covered. But it's the quality of the relationship that makes the real difference. We build long-term partnerships, not projects forgotten once delivered.

Discover the agency

Solutions designed to convert

Not just to exist.

Always tailor-made.

Every line of code serves a specific goal for you. No recycled template, no copy-paste: custom development from start to finish.

Let's talk about your project

Certified Stripe experts

Payment solution integration.

Secure, smooth, tailored to your model.

Stripe, subscriptions, marketplace, pay-on-demand: we set up the payment system that fits your model exactly. Secure, smooth, integrated to the highest standards.

Learn more

We did it for them.
We do it for you.

A few of our recent projects, running in production for our clients for several months.

Lerota

App mobile, Marketplace, Paiement

Albert

Plateforme, Service client, Consulting

Location90

Réservation, Paiement, Plateforme

Wannapay

SaaS, Paiements, API

Animo

IA, Application mobile

JetPneus

E-commerce, PDF