Contact Vault: Backup

Keep control of your address book with Contact Vault, a local contact backup and export tool for Android. Your contacts stay on your device: there is no account, contact upload, advertising, analytics SDK, or internet permission.

Main features:

Export contacts to CSV, Excel, or VCF

Create a local ZIP backup that this app can restore

Preview new and possible existing contacts before restoring

Create a safety backup before contacts are added

Scan for possible duplicates without changing contacts

Export duplicate reports as CSV or Excel

Export one contact with the Android contact picker

You choose every input and output file with Android's system file picker. CSV, Excel, and VCF exports are for other apps and cannot be restored by Contact Vault. Version 1.0 ZIP backups are not encrypted and do not include contact photos or account identifiers, so keep them in a trusted location.

Contact access is requested only after you start a feature that needs it. Contact editing access is requested only after you review a restore preview and confirm the restore. Restore adds contacts; it does not automatically delete, overwrite, or merge existing contacts.