Partnership Background and User Scale
On July 3, 2026, Relai, a Swiss Bitcoin platform, announced a partnership with Casa to introduce a new Bitcoin saving and security solution. According to the press release, the Relai app has over 500,000 downloads, more than 85,000 active users, and a total user investment exceeding $1 billion. These figures reflect growing user engagement with self-custody Bitcoin solutions intended for long-term use.
Adem Bilican, Co-Founder and CTO of Relai, stated: "Self-custody is at the heart of Bitcoin’s promise. As our users continue to accumulate and grow their holdings over time, we recognize the need for long-term solutions designed for serious Bitcoin enthusiasts. Casa is the ideal partner – a sovereignty-focused and user-friendly solution. Together, we’re helping users secure not just their savings, but their legacy."
Multisig Security and Inheritance Feature
Self-custody is a fundamental aspect of Bitcoin ownership, but it also comes with certain risks, particularly around long-term security. The partnership introduces a multisignature (multisig) custody option, which requires multiple keys to access funds. This setup can help mitigate the vulnerabilities of single-key storage. Through the integration, users who purchase Bitcoin via Relai will have the option to store their assets using Casa’s multisig system. The offering also includes an inheritance feature that allows users to designate a beneficiary, adding a layer of planning for asset transfer across generations.
Nick Neuman, CEO of Casa, commented: "Casa’s mission is to maximize sovereignty and security in the world. The best way we can do that today is by making sovereign bitcoin custody as safe and simple as possible. Our partnership with Relai will help people stack bitcoin and store it securely, for themselves and their families."
Industry Implications and Expert Perspectives
According to both companies, the integration represents a first-of-its-kind model that combines Bitcoin accumulation with long-term custody and inheritance planning for everyday users. This comes amid growing demand for secure self-custody solutions after incidents of asset theft or freezing at centralized exchanges like Binance and Coinbase. Relai, as a Swiss licensed platform regulated by FINMA, together with Casa (a Bitcoin security company focused on self-custody), offers a compliant and secure option for European users. While the press release did not disclose fee structures or revenue sharing, it emphasized that the solution is tailored for "serious Bitcoin enthusiasts." With institutional capital entering after Bitcoin ETF approvals, the need for robust personal security tools is rising, and such partnerships may drive further innovation in self-custody technology.