Verifica una vez. Confía en el dispositivo. Cero fricción para siempre.
Crea sesiones de confianza persistentes que reconozcan a tus usuarios recurrentes. Reduce costes de verificación y simplifica tu UX.
Seguridad activa antes de la autenticación
Flujos OAuth protegidos por PKCE. Seguridad robusta, sin complicaciones.
Cada login social usa PKCE. El SDK genera un código verificador único por intento. Sin ese verificador (que nunca sale de tu navegador), cualquier token robado es inútil. Bloqueamos réplicas y CSRF desde la raíz.
Growing fast, moving fast
Our revenue and customer count grew 6x across 2025
Trusted by loved apps already
You might have already had a message from us. BeReal, Sunday, Suno and Voodoo all switched to Prelude because SMS was unpredictable and expensive.
$27M raised
Series A led by 20VC, with Singular, Seedcamp, Deel, and FDJ United Ventures.
International team
We’re 25+ nationalities and counting, bringing diverse experience from start-ups and scale-ups (Twilio, Pleo, Stripe, Afterpay, Okta). We work in English.
Paris office
Most of our roles work from our Paris HQ at least 3 days a week. We’re very central in the 10th arr.
How we work
Ownership
You own the problem, not just the task. If a customer has an issue at 2am, you want to know about it. You write the postmortem and ship the fix.
Care
A failed OTP blocks a real person from their account. We care about users we have never met. We fix things before customers notice.
Bias for action
Slow is expensive. We ship, learn, and fix. A working prototype beats a perfect proposal every time.
Impact-driven
We work on things that matter. Authentication is how hundreds of millions of people prove who they are every day. Getting it right is worth the effort.
What you get
Sesiones totalmente aisladas. Privacidad real.
La detección del fraude llega tarde. Soluciones inteligentes en tiempo real.
100% transport subsidies
Meal vouchers
Company social events
Off-sites in desirable locations
Internal job postings
Share options
Seguridad activa antes de la autenticación
Sales
Soluciones
Soluciones