Backup and Restore

Backup and Restore

Create a backup

1. Open Settings → Back up data.
2. Choose a backup password (at least 8 characters) and repeat it.
3. Pick where to save the .svbk file (phone storage, Google Drive, etc.).
4. The backup contains all accounts, passwords, notes, and tasks, encrypted.

Important: store the backup password somewhere safe. Without it the backup cannot be opened. Back up regularly and keep a copy off the phone.

Restore a backup

1. Open Settings → Restore data and pick a .svbk file.
2. Enter the backup password.
3. Choose a mode:
   • Merge — add the backup's entries; exact duplicates are skipped.
   • Replace all — delete current data and replace it with the backup.
4. You can restore on another phone, for example when switching devices.

Format

The .svbk file is a JSON envelope: a random salt and IV, the KDF name and iteration count, and the AES-256-GCM ciphertext. The key is derived from your backup password with PBKDF2-HMAC-SHA256 (210,000 iterations). The format string is bound as additional authenticated data (AAD), so a tampered or wrong-format file fails to decrypt.