A Product Studio That Runs Its Own Platforms
Subnet Protocol S.A. is an independent product studio headquartered in Madrid, Spain. We design, build, and operate our own consumer platforms — we do not take on client work.
What We Do
We operate Mignonne, a dating platform for French-speaking markets, continuously since 2014. That means everything from the high-performance PHP 8 API and real-time messaging infrastructure to the Next.js web app, the React Native mobile apps, moderation, and member support — all handled in-house.
How We Think
Operating a platform for over a decade shapes how you build. We favor boring, proven technology where it counts, and modernize deliberately — like the 2026 ground-up rebuild of our mobile apps on React Native/Expo after ten years on a hybrid stack. Long-term reliability beats short-term novelty.
What We Stand For
Full Ownership
We own our stack and our operations end-to-end: backend, web, mobile, infrastructure, and support.
Long-Term Products
We build products, not projects. Our flagship platform has been in continuous operation since 2014.
Small Senior Team
A deliberately small team of experienced engineers, close to the product and close to the users.
Privacy by Design
We operate from the EU under GDPR. Respecting our members' data is a baseline, not a feature.