The Sovereign
Bitcoin Wallet.
Store Bitcoin. Stay Sovereign.
Import your existing wallet or start fresh. No signups, no KYC, no tracking. Just Bitcoin. The way Satoshi intended.
On-chain Bitcoin. No middlemen, no custody, no exceptions.
Built for Bitcoiners who
actually use Bitcoin.
Not a multi-chain wallet. Just Bitcoin, properly.
Every address type, sorted
Legacy, SegWit, Native SegWit, Taproot. Import your seed once and bit21 scans every derivation path for you. Nothing gets stranded in a forgotten address type.
Time-locked vault
Lock coins for 30 days, a year, however long. Bitcoin's own scripting holds the lock. Not bit21, not us. The coins simply cannot move until the timer runs out.
Full coin control
Pick which UTXOs to spend, label them, freeze the ones you want to leave alone. On-chain privacy is something you do, not something you buy. bit21 puts the levers in front of you.
Alerts and market data
Set a target price or a percentage move; bit21 pushes a notification the moment it hits. Network stats, fees, and whale moves live on the same screen as your wallet.
Privacy by default
No account, no email, no phone number, no analytics inside the wallet. There's nothing about you stored anywhere for anyone to leak.
Open Source
The wallet code is open. If you ever want to look under the hood, it's there.
Your Bitcoin is already yours.
Nothing moves on-chain. No new addresses. No fee. Type your recovery phrase into bit21 and the same wallet shows up, exactly as you left it.
Type the seed phrase in
Your 12 or 24 words. bit21 encrypts them on your device before doing anything else. They never leave the phone.
bit21 finds every address
Legacy, SegWit, Native SegWit, Taproot, multiple indices on each. Anything with on-chain history shows up.
Everything appears
Balance, transaction history, UTXOs, the lot. Same keys, same addresses. You changed wallets without touching the blockchain.
Why long-term holders pick bit21
Six figures or six dollars, the security model is the same.
Zero on-chain footprint
Importing a seed makes no transactions. Your addresses, UTXOs, and history stay where they are. No consolidation, no linking, no exposure.
No identity, by design
bit21 collects nothing. No email, phone, IP log, or in-wallet analytics. We could not identify a user if we tried.
Force your own discipline
The time-locked vault uses Bitcoin's scripting to keep coins unspendable until a date you picked. Not our word for it. The protocol's.
Your seed is encrypted on your device. Nothing is uploaded.
Two Paths. Same Sovereignty.
Import Existing Wallet
Already hold Bitcoin somewhere else? Bring it here with your recovery phrase.
Create Fresh Wallet
Starting from zero? Generate a new wallet and receive your first Bitcoin in under a minute.
Your keys stay
where they belong.
Self-custody hands the responsibility to you. bit21 is built to make holding it feel routine, not heroic.
Encrypted on your device
Type your seed phrase in and bit21 encrypts it locally before anything else happens. It does not get uploaded, sent, or stored anywhere except your phone.
True self-custody
No server holds your keys. No account exists to freeze. No company can block your access. When people say "self-custody," this is the version they mean.
Your device, your vault
Wallet data lives on your phone, encrypted. There is no cloud to hack and no sync layer to compromise. The attack surface is your device, and that is up to you.
Nothing to hide
The wallet code is open. Trust by inspection rather than promise. For the rare user who wants that, the option exists.
Take custody.
Bitcoin you actually own, in a wallet you actually control.
Android APK · v1.0.0 · 5 MB