Most crypto wallets ask you to choose between two bad options: hand your keys to a company you have to trust, or hold your keys yourself and have nowhere to spend. B28 refuses that trade. You keep your own keys, and we are building the bridge that turns what you hold into money you can use.
What we are building
B28 is a non-custodial crypto wallet. Your keys are generated and stored on your own device, inside the phone's secure hardware behind your fingerprint or face. We never hold, control, or access your funds. You can export your recovery phrase at any time, and because it lives only with you, if you lose it we cannot recover it for you.
The wallet holds, sends and receives across 16 networks and around 48 assets, takes instructions in plain language, and runs the Sentinel over every transaction before you sign it. Further out is the instant-convert Visa card, which arrives with a regulated banking partner. We describe a thing as built when it is in the app and as planned when it is not, and we do not move it between those two columns early.
Safety is the brand
We think the most valuable thing a wallet can do is stop you from losing money. That is why the Sentinel speaks before you confirm a transfer: it screens the recipient address and the token against known scams, drainer approvals, look-alike "address poisoning", and honeypot tokens, and warns you first. The assistant you can talk to prepares actions for you to approve with your fingerprint. It will not give buy or sell advice, it will not hold your keys, and it never moves money on its own.
Honest by design
Holding and receiving are free. Sending is free from us — you pay only the network's own fee, which we show you before you confirm. In-app convert carries a small fee, quoted in full at the moment you would pay it. You can read the full breakdown on our fees page, and how self-custody works on self-custody. We collect only what we need, which on this site is the email you give us to be told about launch. See our privacy page for the details.
B28 is not a bank. We do not take deposits, we are not a regulated deposit institution, and crypto is volatile and uninsured.
Who operates B28
B28 is operated by B28 OÜ, a company based in Tallinn, Estonia. One company, one team, building one product carefully. If you want to reach us, write to hello@joinb28.app, or for anything security related, security@joinb28.app.
Any independent security review we commission is published here in full, whatever it finds.