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Spiko Brings Institutional-Grade Euro Yields to Europe's Most Popular Bitcoin App and Its 350,000 Savers
Spiko
23 June 2026

Spiko Brings Institutional-Grade Euro Yields to Europe's Most Popular Bitcoin App and Its 350,000 Savers

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We're thrilled to announce our partnership with Bitstack, which is embedding Spiko Smart Cash Euro directly into its app with the launch of Bitstack Boost.

Bitstack Boost gives Bitstack customers access to a 2.51% net annual yield in euros, starting from as little as €1, with funds available in under 24 hours.

What Bitstack Boost actually changes

Bitstack is the #1 Bitcoin savings app in France, with over 350,000 active users across 20 European countries. Its flagship feature, automatic round-ups, converts spare change into Bitcoin with every purchase: a €2.60 coffee becomes €3, and the €0.40 difference is automatically saved in Bitcoin.

Bitstack users are disciplined long-term Bitcoin savers but they often leave their available euros sitting idle in a current account earning 0%. Bitstack Boost fixes that: 2.51% net of fees per year, no cap, accessible in seconds from the app, with principal and interest withdrawable at any time within one business day. Bitcoin savings and euro yields now live in the same place, no new account needed.

Alexandre Roubaud, co-founder and CEO of Bitstack: "With Bitstack Boost, our customers can now put their euros to work alongside their Bitcoin savings, rather than letting them sit idle."

The Spiko API: the infrastructure behind Bitstack Boost

With Bitstack Boost, Spiko Smart Cash Euro becomes available to 350,000 new users directly inside the Bitstack app. That's exactly what the Spiko API is built for: making best-in-class cash management products available through any app.

Paul-Adrien Hyppolite, co-founder and CEO of Spiko: "Idle money is a choice, not an inevitability and Bitstack Boost proves it. 350,000 customers can now grow their fiat savings through our infrastructure."

About Spiko

Spiko is an ACPR-regulated investment firm on a mission to democratize access to risk-free rates for businesses and individuals alike. Its money market funds - approved by the Autorité des marchés financiers (AMF) and held in custody at CACEIS Bank - allow any saver to put their cash to work at central bank rates, with funds available at all times, no notice period, no penalties, and no withdrawal fees.

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