Eurozone prices are up 23.4% since 2020, per European Central Bank data, driving nearly 4 million French adults to hold Bitcoin as a hedge. Paris-based Bitcoin savings app Bitstack tackles this head-on with a mobile app that rounds up everyday purchases and auto-converts the change into BTC via dollar-cost averaging.

Today, the company raised $15 million in Series A funding, led by 13books Capital, with support from returning investors AG2R LA MONDIALE, Plug and Play Ventures, Serena, Stillmark, and Y Combinator.

The funds will accelerate its European expansion and roll out new products to help people protect their purchasing power.

Meet France’s most popular crypto savings platforms

Bitstack was founded in April 2021 by Alexandre Roubaud (CEO) and Kabir Sethi (CTO), both alumni of McGill University in Canada. They shared a passion for Bitcoin and aimed to offer Europeans a simple, fun, and secure way to save and invest in Bitcoin without complexity.

The founders chose to base Bitstack in southern France due to favourable regulations and a supportive ecosystem. Since its inception, Bitstack has become one of France’s most popular crypto savings platforms as rising prices continue to erode the value of the euro.

Roubaud explains, “In three years, Bitstack has achieved exceptional growth: more than 300,000 active users have saved over €300 million in Bitcoin, and our revenue has increased tenfold in two years. These results demonstrate the growing interest of the French population in Bitcoin, in a context of economic uncertainty and monetary tensions. We are now the most widely used French crypto app.”

Bitstack’s automatic round-up feature converts everyday purchase spare change into Bitcoin savings using Dollar-Cost Averaging (DCA), making savings painless and automated. Other features include Europe’s first VISA debit card with a “Stackback” rewards program that offers fee-free real-time round-ups and up to 1% Bitcoin cashback on all purchases with no cap, plus a euro account with a French IBAN for easy transfers and salary conversion into Bitcoin.

Direct competitors include Revolut’s crypto offering, Bitpanda, and MoonPay, but Bitstack’s focus on Bitcoin savings discipline and its innovative rewards system set it apart.

The company now operates in a dozen European countries, including Germany, Spain, the Netherlands, and Italy. Each market features localised content and a fully adapted user experience. The company’s growth has been strengthened by its MiCA licence, approved by France’s AMF on June 30, 2025.

Enables users to save in Bitcoin

Bitstack plans to launch a beta phase for its VISA debit card with Stackback rewards starting January 13, 2026, initially available to 5,000 waitlist users. The company aims to expand its geographic footprint deeper across European markets by offering fully localised content and user experiences tailored to each country.

Michael McFadgen, co-founder and partner at 13books Capital, says, “With this fundraising round, Bitstack enters a new dimension. By expanding its footprint and enhancing its product suite — including a VISA debit card with Stackback and a euro account with a French IBAN — Bitstack is now ideally positioned to become Europe’s leader in Bitcoin savings.”