SeedVault is only pre-built into Custom Android ROMS (CalyxOS & LineageOS 17.1+), uses the same internal APIs as adb backup and the Android to Android device transfer systems, therefore no root access is used. Features • Backup/restore application & user data. • Automatic daily backups that run in the background. • Supports USB flash drives, NextCloud. • Strong security & privacy. • User-friendly encryption using a mnemonic phrase (BIP39).