• The Bitstack app is now available in a dozen European countries, with a fully localized experience.
• A first in Europe, Bitstack launches the first VISA debit card rewarding long‑term savings discipline, with real‑time fee-free  round‑ups and the Bitcoin “stackback” rewards program.

Paris, December 2, 2025 – Bitstack, France’s leading Bitcoin savings application, announces today a $15 million Series A funding round led by 13books Capital, with participation from existing investors AG2R LA MONDIALE, Plug and Play Ventures, Serena, Stillmark and Y Combinator.

Prices in the euro area have risen 23.4% between October 2020 and 2025, according to the European Central Bank (ECB), reflecting a marked erosion of the currency’s purchasing power. Bitcoin, capped at 21 million units, offers an alternative that continues to grow in adoption. Today, nearly 4 million French people hold Bitcoin. Launched in 2022, Bitstack has established itself as a key player meeting this rising demand by making Bitcoin saving accessible to the public, with a mission to help people preserve their purchasing power and achieve their life goals.

Alexandre Roubaud, Co-founder & CEO at Bitstack, 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.”

Yannick Lassalle, Director of ALM Innovation at AG2R LA MONDIALE, comments: “Our investment in Bitstack reflects AG2R LA MONDIALE’s conviction that digital assets, particularly Bitcoin, must be integrated into long‑term savings strategies. Bitstack now represents a trusted partner to whom we can direct clients seeking to diversify their savings into crypto‑assets, and Bitcoin in particular.”

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Bitstack Accelerates and Delivers on its European Ambition

Bitstack now operates in a dozen European countries, such as Germany, Spain, the Netherlands and Italy, offering content in the languages of each market where the app is available. This expansion is supported by the MiCA (Markets in Crypto‑Assets) license obtained on June 30, 2025 from the AMF. Bitstack is the third French company to secure this approval, meeting strict European regulatory requirements and offering enhanced protection, transparency and reliability for its users.

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The First VISA Debit Card in Europe Offering “Stackback”:  a Bitcoin rewards program whose benefits grow in line with the user’s savings

Known for its Bitcoin savings solution that rounds up everyday purchases to the next euro and automatically converts the difference into Bitcoin, Bitstack is expanding its offering with innovative services for French users:

• A euro account with a French IBAN, enabling users to send and receive transfers easily, for example, to convert part or all of their salary into Bitcoin.
• A VISA debit card that rewards long‑term savings discipline through two mechanisms:
  
  • Real‑time, fee-free round‑ups on all purchases made with the card.  
  • “Stackback”: users can earn up to 1% in Bitcoin on all euro expenditures, at any merchant, with no cap - a first in Europe.

A beta phase for the card begins on January 13, 2026, accessible to the first 5,000 individuals on the waitlist.

Michael McFadgen, Co‑Founder and Partner at 13books Capital, concludes : “With this fundraising round, Bitstack enters a new dimension. By expanding its geographic 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 cement its status as Europe’s leader in Bitcoin savings.”

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About Bitstack

Founded in April 2021 by Alexandre Roubaud and Kabir Sethi, the Paris‑based French company Bitstack offers a mobile application enabling users to save in Bitcoin simply, smoothly and effortlessly over the long term. Bitstack is best known for enabling users to automatically round up purchases to the nearest euro (e.g., a €2.60 coffee rounded to €3.00, with the €0.40 difference saved in Bitcoin).

Bitstack SAS, a company registered with the Aix-en-Provence Trade and Companies Register under number 899 125 090 and operating under the trade name Bitstack, is licenced as an agent of Xpollens (subsidiary of Groupe BPCE) — an electronic money institution authorized by the ACPR (CIB 16528 – RCS Paris no.501586341, 110 Avenue de France, 75013 Paris) — with the Autorité de Contrôle Prudentiel et de Résolution (ACPR) under number 747088, and is also licensed as a Crypto-Assets Service Provider (CASP) with the French Financial Markets Authority (AMF) under number A2025-003 for the following activities: exchange of crypto-assets for funds, exchange of crypto-assets for other crypto-assets, execution of orders for crypto-assets on behalf of clients, providing custody and administration of crypto-assets on behalf of clients, and providing transfer services for crypto-assets on behalf of clients, with its registered office located at 100 impasse des Houillères, 13590 Meyreuil, France.

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Press contact

Alexandra Brainos-Gimond

alexandra.brainsosgimond@consultancy32.com

+33 (0)6 03 24 76 19

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