Bitstack is a French fintech app that makes saving in bitcoin simple and accessible to everyone.
Built for beginners, it strips away crypto jargon so saving in bitcoin feels as natural as using a regular banking app. Sébastien joined in February 2022 as founding designer, shaping the product experience and brand from the ground up.
Working with Antitype during Bitstack’s launch was a pivotal experience for us.
Alexandre Roubaud - CEO @Bitstack
We owned the product end to end. We built the design system from scratch, establishing the visual language and components that let the team ship consistently as we scaled.
The Bitstack card was where the app’s core idea became physical: every purchase made with it triggered an automatic round-up into Bitcoin, turning spending itself into the savings gesture. We designed it end to end, from the card’s visual identity to the in-app flows around activation, transactions, and round-up tracking.
Date
2022-2025
Sector
Finance
Fundraising
€23M
MAU
350K
Backed by
