Backup & Restore

What You See

Where: Settings → Data & Sync → Backup & Restore

The Backup & Restore screen lets you create and restore local backup files on your device. It shows:

• An "About Backups" info card: Backups are encrypted, stored safely, and require your master password to restore
• A "Create Backup" section with a full-width button
• A "Restore from Backup" section with a full-width button
• A warning card: "Restoring a backup will replace your current vault. Create a backup of your current vault before restoring if needed."

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Create a Local Backup

1. Tap "Create Backup"
2. A dialog asks you to name the backup — a default name is suggested (e.g., davianvault_backup_20260214_103000)
3. Edit the name if you want, then confirm
4. A file save dialog opens — choose where to save the .zip file
5. The app creates an encrypted backup and saves it
6. A success message confirms the backup was created

What's included in a backup:

• Your entire encrypted vault (passwords, notes, cards, documents, folders)
• Your encrypted audit log
• Vault metadata

What's NOT included:

• App preferences (theme, auto-lock timeout) — these are device-specific
• Biometric settings — these are device-specific

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Restore from a Local Backup

1. Tap "Restore from Backup"
2. A file picker opens — navigate to and select your .zip backup file
3. The app validates the backup file integrity
4. If your current vault has changes that could be lost, a conflict warning appears:
   • The dialog shows your local vault timestamp vs. the backup timestamp
   • An info note explains that an automatic pre-restore backup is created for safety
5. A confirmation dialog shows the backup date and asks you to confirm
6. You're prompted to enter the master password that was used when the backup was created
7. The vault is restored

If the password is wrong: Your vault is automatically rolled back to its previous state. You'll see: "Invalid password for this backup. Your vault has been restored to its previous state."

After a successful restore: A success message appears. You may need to re-authenticate if the restored vault uses different credentials.

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Backup & Sync Screen

There's also a Backup & Sync screen (accessible from Cloud Sync settings) that combines local and cloud backup operations:

Backup Options

• Sync to Local — save encrypted backup to device
• Sync to Cloud — upload encrypted backup to Google Drive

Restore Options

• Restore from Local — pick a backup file from your device
• Restore from Cloud — download and restore from Google Drive

Auto Backup

• Scheduled Auto Backup toggle
• Backup Interval — configurable: 1 hour, 3 hours, 6 hours, 12 hours, or 24 hours

Safety Features

When restoring, you're given three options if a conflict is detected:

1. Cancel — don't restore
2. Backup First — create a safety backup before restoring
3. Replace Local — restore immediately

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Vault Backup Viewer

Where: Cloud Sync Settings → Vault Backup

Shows all local backup files created during sync operations and conflict resolution. For each backup:

• Creation date and time
• Size in KB
• Age (e.g., "2 days ago")
• Restore and Delete buttons

Actions

• Restore — restores the selected backup (requires confirmation)
• Delete — permanently removes the backup file
• Delete Old Backups (top bar) — remove backups older than 7, 30, or 90 days
• Clear All (top bar) — permanently remove all backup files

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Important Notes

• Backup files are encrypted — they can only be restored with the correct master password
• Always create a backup before restoring another one — the restore operation replaces your current vault
• The .zip suffix is automatically added to backup file names
• An audit log entry is created for both backup and restore operations
• Consider keeping backups on an external drive or separate location from your device