Bip39 flutter https://bip39marco.mystrikingly.com/ Even though it uses BIP32 method you can even now import BIP39 seeds into Electrum wallet. Also in addition to BIp32 there is BIP44 version which some wallet use for the technology of seeds. Vault12 will be the pioneer in copyright inheritance administration. Watch our explainer video https://advicebookmarks.com/story27457556/bip39-or-slip39-a-secret-weapon-for-bip39-mnemonic-https-linktr-ee-bip39