Bip39 Compatible Wallet. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, from the context of Bitcoin wallets, is an extra layer of safety to your wallet that actually works along with your seed phrase to encrypt and protect your wallet. https://socialtechnet.com/story4230138/bip39-wallet-https-linktr-ee-bip39-the-fact-about-bip39-wallets-that-no-one-is-suggesting