BTCVM Wallet for Mac

Version 0.1.2, beta. For macOS 14 or later, on Apple silicon or Intel. Signed and notarized by Apple, and it updates itself.

What it does

Both networks, one key. Your key has the same address on Bitcoin and on BTCVM, and the app shows both balances side by side.
Bring your Bitcoin Core wallet. Import the keys from a Bitcoin Core wallet.dat, legacy or descriptor, encrypted or not. It's read and decrypted on your Mac and never uploaded anywhere.
Review before you sign. Every payment is shown line by line (who's paid, change back to you, a withdrawal's destination, the fee) before Touch ID signs it, and the signed transaction is checked against what you reviewed before it's sent.
Move between chains in one step. Move BTC from your Bitcoin balance to BTCVM, and withdraw back to any Bitcoin address.
Your key stays on your Mac, encrypted to its Secure Enclave, so the file is useless on any other computer.
An address book. Save addresses with a name, pick them when you send or withdraw, and see the name next to the full address before you sign.
Payments of a satoshi on BTCVM, for a fee of 1 satoshi, and amounts in BTC, sats or US dollars.

Prefer not to install anything? The bridge page is a full wallet in your browser.

The web wallet imports the same kind of key (a WIF starting with K or L), so a key you use there will open in the Mac app too.