An encrypted SMS archive on your Android phone, with optional encrypted backups in your own Google Drive. Search saved messages, verify backups, and prepare a passphrase-protected backup for a new phone.
Keep an encrypted archive, find saved messages, and choose how to back them up. Optional Delivery is separate from encrypted backup.
The local archive uses SQLCipher with AES-256. Backup files use AES-256-GCM. Android Keystore protects device keys using available hardware, with a software fallback. Optional Delivery sends readable copies to destinations you configure.
Use full-text search to find saved message text and sender information in your archive. Results depend on the messages retained on your device.
Verify a backup before restoring it into HashKeep. For a new phone, create a portable backup with a passphrase and keep that phrase safe. Portable local .hkv backups are also available in Internal Testing from version 0.2.0. Scheduled backups and device-bound local files still need the original device key.
Grant the required permissions, choose your backup settings, and check backup status. Android can defer background work; a schedule is not a guarantee that a backup has completed.
HashKeep requests SMS read and receive permissions, never SEND_SMS. Import copies of existing SMS into your encrypted HashKeep archive. Your system Messages inbox is not encrypted or replaced by HashKeep.
Connect your own Google Drive using the drive.file scope for app-created files. Manual backups are available in Free; scheduled backups require Pro. Connecting Drive alone does not create a portable backup.
Search saved messages, restore into HashKeep, or export CSV in Free and PDF in Pro. Optional Delivery sends readable copies of backed-up messages through your SMTP, Telegram or Discord destination; those providers and recipients can read them.
Original, unaltered captures from signed HashKeep 0.1.55 on an Android 13 emulator. All messages and senders are synthetic demo data. The app screens are in English.
Encrypted backup, optional readable Delivery, and content-free diagnostics have different data paths. Here are the boundaries.
The Android manifest does not request SEND_SMS. HashKeep does not send carrier SMS; optional Delivery uses network services instead.
The drive.file scope gives HashKeep access to app-created backup files, not your entire Drive.
We do not operate a HashKeep message-storage backend. Your selected Drive and Delivery providers process data you send to them. Website hosting and optional diagnostics use separate services.
The app does not request contacts access. Message sender addresses are stored with your archive.
Content-free Firebase diagnostics can be switched off in Settings. Error messages and causes are sanitized; diagnostic stack traces remain. Message addresses and bodies are not diagnostic fields.
We do not escrow your keys or passphrase. New-phone restore needs a portable backup and its passphrase. Device-bound backups need the original device key.
Free includes encrypted local archive with 30-day local retention, search, manual backup, CSV export, restore and verification. Optional Pro adds:
The local archive uses SQLCipher (AES-256); backup files use AES-256-GCM. Android Keystore uses StrongBox or other hardware where available, with a software fallback. This protects stored archives and backups, not readable copies you choose to send through Delivery.
Free includes encrypted archive, search, manual backup and local export, CSV export, restore and verification, optional app lock, and 30-day local retention. Free Delivery allows one active rule without advanced filters. Pro adds scheduled Drive backup, PDF export, longer retention, audit-log PDF export, additional active Delivery rules, advanced filters and cadence controls. Pro is an optional one-time purchase; Google Play shows your local price.
HashKeep supports Android 9 and later. There is no iOS version.
Create a portable backup with a passphrase before losing the original phone. For a Drive backup, connect the same Google account on the new phone and choose that backup in HashKeep. Portable local .hkv backups without Google Drive are available in Internal Testing from version 0.2.0. Select the portable file and enter its passphrase to restore into HashKeep, not Android Messages. Scheduled backups and device-bound local files need the original key; older files do not become portable.
Delivery is available now for SMTP email, Telegram and Discord. You configure and test a destination before saving it. Delivery sends readable copies of backed-up messages, not encrypted backup files or carrier SMS. Destination providers and recipients can read the sender, message text and timestamp. Generic HTTPS webhooks are not supported.
HashKeep archives SMS text. MMS, RCS, attachments and call-log backup are not supported. Do not rely on them being captured as SMS.
HashKeep is published on Google Play. It requests SMS read and receive permissions for its archive and does not request SEND_SMS. Google Play availability is not an endorsement by Google. See the privacy policy for encrypted backup and optional readable Delivery disclosures.
HashKeep is published by Icemint LLC under the Icemint Labs name, based in Sheridan, Wyoming, USA. For support, contact hello@hashkeep.app.
Start with the free archive and manual backup tools. Upgrade to Pro only if you need its additional features; your price appears in Google Play.