XBT wallets: iPhone, Android, desktop and hardware
Short answer: there's no finished XBT wallet in the iPhone App Store yet, but Paperclip Wallet now has a public TestFlight beta. On Android, Kilowallet is the most complete phone wallet. On desktop, use Shrike or the Sparrow BLAKE2b build. For savings, use a SeedSigner running XBT firmware, signing for one of those desktop wallets. Everything here is new, community-built and unaudited, so start small.
Three rules before you install anything
1. Use a fresh wallet just for XBT. XBT and Bitcoin share every address and all history up to block 961,632. Never reuse a seed or address that holds real BTC.
2. Check for replay protection if you're spending coins you held before the split. Wallets that sign with XBT's opt-in flag (SIGHASH_UNIFIED) produce transactions that can't be copied onto the BTC chain. Coins you bought or mined on XBT after the split don't have this risk.
3. Keep only spending money on a phone. A good rule: no more than you'd carry in cash, about $100 to $200. Everything else goes to cold storage. Never type your recovery words into a website.
Every XBT wallet, at a glance
| Wallet | Platform | Keys | Replay protection | Status |
|---|---|---|---|---|
| Paperclip Wallet | iPhone (TestFlight), Umbrel, StartOS | Self-custodial. Check where the iPhone app keeps keys | Not stated yet | Public beta (0.8.3). Lightning capped at 250,000 sats |
| Kilowallet iOS | iPhone | On the phone (Keychain, Face ID). Watch-only too | Yes | Release candidate (0.2.0, Oct 19). Not in the App Store yet |
| blake playground | Any browser | In the browser, unencrypted | Yes | Experimental. Small amounts only |
| Kilowallet (Android) | Android | On the phone. Watch-only, passphrase support | Check before spending pre-fork coins | Live. Signed, reproducible builds on Zapstore and GitHub |
| Btc Blake2b Wallet | Android | On the phone (encrypted). Watch-only | Yes (per its site) | Experimental, one developer. Lightning via your own node |
| pyblock-blake2b | Android | On the phone (bdk) | Has an unlock step for replay-locked coins | New, single vendor |
| Shrike | Windows, Mac, Linux | Yours, or on a hardware signer | Yes, on by default | Unaudited. GPG-signed checksums, apps not notarized |
| Sparrow BLAKE2b build | Windows, Mac, Linux | Yours, or on a hardware signer | Yes | Community build. Needs a BLAKE2b-aware Electrum server |
| Bitcoin Knots wallet | Desktop (full node) | In your node | Yes | The reference software. Best if you run a node |
| Electrum-XBT | Desktop | Yours | Yes | Testnet only for now |
| SeedSigner (XBT firmware) | Hardware | On the device, offline | Yes | Community firmware, development signing keys |
| Lazarus Key * | Hardware (Bitkey device) | Bitkey hardware, forked app | Yes (per Lazarus) | New. We haven't tested it |
| Canary | Watch-only | No keys | n/a | Balance and payment alerts. Needs a BLAKE2b Electrum server |
* Lazarus is an xbt.live sponsor. That doesn't affect this list. "Yes" for replay protection means the project says it signs with SIGHASH_UNIFIED. We haven't audited any of these.
iPhone
Paperclip Wallet, from Connor's Lab (the team behind Paperclip Bridge and Paperclip Shop), opened a public TestFlight beta on Oct 24. It does on-chain XBT, Ark and Lightning (BOLT11 and BOLT12). It's labeled a public beta and "not independently audited", with Lightning payments capped at 250,000 sats and Ark boarding starting at 20,000 sats. Its home-server version keeps keys on your own Umbrel or StartOS box. We haven't confirmed how the iPhone build stores keys or whether it signs with replay protection, so don't use it for pre-fork coins yet.
Kilowallet iOS is the other one to watch. It's built by Kilombino, who makes the Android Kilowallet, and published to the App Store by a partner (romanmodin) on his behalf. Version 0.2.0 keeps keys in the iPhone Keychain behind Face ID, supports watch-only wallets from an xpub, and signs with replay protection. Its own README calls it a release candidate "not yet approved for real funds", and as of Oct 24 there's no App Store or TestFlight build to install. Lightning, coinjoin and Ark are on its roadmap.
The project warns that any App Store build under its name from anyone other than the listed publisher isn't official. When it ships, check the publisher before you install.
Until one of them is final: the safest iPhone setup is no savings on the iPhone. Keep coins on a desktop or hardware wallet. If you need pocket money on the phone, the blake playground browser wallet works, but it stores keys unencrypted in the browser, so treat anything in it as cash you could lose.
Android
- Kilowallet: the most complete phone wallet. Hot wallet and watch-only, passphrase support, opt-in coinjoin (Kilojoin) and Ark, in-app verified updates and a home-screen widget. Reproducible, signed builds on Zapstore and GitHub. If you're spending coins from before the split, check that your version signs with replay protection first.
- Btc Blake2b Wallet: local keys, watch-only, and experimental Lightning that connects to a node you run yourself. One developer, early.
- pyblock-blake2b: new, built on bdk, with a step for unlocking replay-locked coins.
Desktop
- Shrike: a fork of Sparrow for the BLAKE2b chain, maintained by privkeyio. Windows installers, Mac builds and Linux packages. Replay protection is on by default, and you mark each hardware signer as replay-protected yourself. Verify the GPG-signed checksums before installing: the Mac app isn't notarized and the Windows installer isn't signed, so both warn on first launch.
- Sparrow BLAKE2b build: a community build of Sparrow by paulscode. Same idea as Shrike. It needs a BLAKE2b-aware Electrum server, for example Oracle Knots' public server or your own electrs-pruned.
- Bitcoin Knots: the node's own wallet signs with replay protection from the command line and the GUI. The most direct option if you already run a node.
Hardware and cold storage
For anything you'd hate to lose, keep the keys on a device that never goes online. Our pick is a SeedSigner running the community XBT firmware, paired with Shrike or Sparrow on your computer: you scan QR codes to sign, with no cables and no seed on the computer. It costs about $60 in parts. Step-by-step build guide
Lazarus Key is a newer option: a fork of Block's Bitkey app, so a Bitkey device can sign on XBT, with replay protection and the option to read only from your own node. We haven't tested it yet. Bitkey's normal design involves a phone key and a server key alongside the hardware, so check how the fork handles those before trusting it with savings.
Lightning
XBT has its own Lightning network, and right now the reliable way in is running a node:
- Lightning Fork (by paulscode): LND for the BLAKE2b chain, packaged for Umbrel and StartOS, with an Android companion app.
- Thunderhub XBT (by Kilombino): a node manager you open in a browser, so it works from an iPhone too, connected to your own node.
To pay bitcoin Lightning invoices with XBT, see Lightning bridges. Swap services have small limits for now.
FAQ
Can I use my normal Bitcoin wallet? No. Regular Bitcoin wallets follow the SHA-256 chain. You need a wallet built for BLAKE2b.
I held bitcoin before August 2026. Do I have XBT? Probably. Check an address, then read the pre-fork section of the cold storage guide before you move anything.
Which wallet does xbt.live use? We don't name our own setup. This list is what we'd tell a friend.
Cold storage guideHow to buy XBT
Sources: each project's GitHub README and releases, btcblake2b.org, lazarus-xbt.xyz and the community awesome-bitcoin-blake list, checked Oct 24, 2026. Listing is not an endorsement, and none of these wallets has been independently audited. Not financial advice.