
₿21 - Bitcoin Wallet
Bitcoin-only self-custody
About
What's New in ₿21
1.0.1
September 9, 2026
A new name, and every fix from two rounds of security review. The app is now called ₿21 Wallet. Your wallet is untouched — same recovery phrase, same addresses, same balance. There is nothing to migrate and nothing to re-enter. • Your balance is never reported as saved when it wasn't. If the app cannot write to storage, it now says so plainly instead of showing a figure that would quietly disappear on the next launch. • New in Settings: rescan the chain. If a balance or history ever looks wrong, you can rebuild it from the blockchain without deleting your wallet and typing your recovery phrase again. • Restoring now finds the account holding your bitcoin, rather than the one with the longest history. If you have used both Taproot and Native SegWit with the same phrase, recovery lands on the right one. • A receive address is only shown once it has been safely recorded, so restarting the app can never hand the same address to two different people. • Paying your own address now shows the real amount instead of zero, and the high-fee warning stays switched on for it — the one payment where the fee is the entire cost. • The gap limit now takes effect immediately on a wallet you already have. Raising it used to do nothing until the next restore. • Pointing the wallet at your own node now assumes a secure connection for anything that is not on your home network. • "Forget this wallet" now destroys the key that protected your recovery phrase, not just the encrypted copy of it. • Clearer wording when a payment cannot be saved, so it no longer reads as a network problem.
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