La Panetière
Turn visitors into customers. A high-performing website is not just about speed: it removes friction and guides visitors toward action. Every page is designed to turn interest into inquiries, bookings, or sales.
Independent product studio
High-Performance Websites, SaaS Platforms and Mobile Apps.Built to Last.
We build high-performance digital products for startups and growing businesses. Built with clean, maintainable code, optimized for technical SEO, and fully owned by you. From design to deployment, everything is delivered ready to launch.
Built once. Built right.
Software that ages well is a discipline, not a feature.
Our approach
Interactive demonstrations showcasing our standards in performance, accessibility, SEO, and user experience.
Websites built to perform and convert.
Every website is designed to make a strong first impression, build trust within seconds, and create business opportunities. Fast-loading, SEO-optimized, and built to convert.
L'Épicurien
A first impression that builds confidence. Visitors judge your business within seconds. A modern design, a seamless experience, and a professional online presence strengthen your credibility and encourage them to get in touch.
Le Petit Raspail
Get discovered by the right people. Your website is built with strong SEO foundations to help search engines understand your content, appear in relevant searches, and attract visitors who are genuinely interested in your services.
Native apps, because they are.
Ready to Launch. No technical hassle. Your product is fully tested, documented, and delivered production-ready.
Why Choose Primisia
Work Directly With Your Developer
No account managers or middlemen. You'll communicate directly with the engineer building your product.
Fixed-Price Proposals
Transparent pricing with no hidden costs. You'll know exactly what you're paying before development begins.
No Outsourcing
Every project is designed and developed in-house in France.
Modern, Open Technology
Built using industry-standard technologies so your project can evolve with any developer in the future.
How We Work
Discovery
We learn about your business, goals, and users to define the right technical approach.
Design and Development
We design and build your product using modern technologies and clean engineering practices.
Launch
Everything is thoroughly tested, documented, and deployed to production.
Grow
You own your code and remain free to evolve your product without vendor lock-in.
Built for Performance
Full Source Code Ownership
Technical SEO Ready
Responsive Design
Accessibility Best Practices
Fast Loading Performance
Production-Ready Delivery
Clean and Maintainable Code
No Vendor Lock-In
Answers, briefly.
Why is custom development worth the investment?
Ready-made platforms charge you every month and box you in. A custom build is faster, more flexible, and truly yours. You pay once instead of renting forever.
Will I be dependent on Primisia?
No. It is built with open, widely used tools, so anyone can take it over later. No locked platform, no forced subscription. You stay free.
Who owns the code?
You do, completely, from day one. Nothing hidden, nothing you are forced to keep paying for. It is yours to keep and change.
Can you improve an existing product?
Yes, and it is a common way to start. We fix what slows your site or app down and boost its speed and its visibility on Google.
How much does a project cost?
Websites start at 990 €, mobile apps from 4,900 €, larger platforms from 8,900 €. You get a clear, fixed price up front. No surprises.
How long does a project take?
Websites are usually ready in two to four weeks. Apps and larger platforms take six to twelve. You get a clear timeline before we start.
What happens after launch?
It is delivered finished and ready to use. Optional upkeep and monitoring are there if you want peace of mind. You stay in control.
Do you provide design as well as development?
Yes. Design and build, together, in-house. From the first screen to the finished product, all in one place.
How involved do I need to be?
As little as you like. A short talk to set the direction, then you deal directly with the person building it. A few quick check-ins are enough.
How do I know if Primisia is the right fit?
If you want a fast, reliable product that is truly yours, built by the person you actually talk to, it is a fit. Tell us your idea and get an honest answer.
Let's Build Your Next Digital Product
Primisia was created to give businesses an alternative to expensive proprietary platforms and poorly engineered digital products. We build fast, scalable, and maintainable software that you'll fully own from day one.
Share your project with us and receive a clear proposal within one business day.