Libre Contacts Backup
Offline contact backups with optional encryption
新版本 2.9.0
Added:
- You can now report a problem from About using your email or another sharing app
- Reports can optionally include technical diagnostics; contact data, backup files, and storage paths stay out
- You can now report a problem from About using your email or another sharing app
- Reports can optionally include technical diagnostics; contact data, backup files, and storage paths stay out
Libre Contacts Backup is a FLOSS native Android app for private, local-first contact backups. No account, no tracking, and no automatic uploads — your contacts stay on your device unless you choose to move a backup file, export data, or share a report.
Features:
* Lossless backup preserving the full Contact → RawContact → Data hierarchy, including contact groups
* SIM card phonebook captured on a best-effort basis when the device exposes it; if it cannot be read, the backup reports that it contains device contacts only. On restore, SIM contacts can be written back to the SIM card, into the device address book, or both
* Scheduled local backups at a time you choose — daily, weekly on a selected weekday, or monthly on a selected day (if a month is shorter than that day, it runs on the month's last day) — with no internet connection required
* Single-file LCB archives containing canonical JSON, VCF, CSV, and normalized exports
* Optional AES-256-GCM password-protected encryption (Android Keystore backed)
* Restore consolidates each source contact correctly, without merging different people who share a name
* Manual CSV and vCard exports, and the CSV opens in Excel and other spreadsheet apps
* Retention by age — keep the newest backups per day, week, and month with counts you choose (for example 7 daily, 4 weekly, 3 monthly), so the recent past stays densely backed up while older history thins out — or simply keep the last N sets
* Choose the app language and system, light, or dark theme from the Display menu
* Create a problem report from About and choose whether to include technical diagnostics before sharing it with an email or sharing app
Libre Contacts Backup is free and open source. If you find it useful, you can support its development — see the donation options in the project README: https://librecontactsbackup.ashkanrafiee.com/#donate
Features:
* Lossless backup preserving the full Contact → RawContact → Data hierarchy, including contact groups
* SIM card phonebook captured on a best-effort basis when the device exposes it; if it cannot be read, the backup reports that it contains device contacts only. On restore, SIM contacts can be written back to the SIM card, into the device address book, or both
* Scheduled local backups at a time you choose — daily, weekly on a selected weekday, or monthly on a selected day (if a month is shorter than that day, it runs on the month's last day) — with no internet connection required
* Single-file LCB archives containing canonical JSON, VCF, CSV, and normalized exports
* Optional AES-256-GCM password-protected encryption (Android Keystore backed)
* Restore consolidates each source contact correctly, without merging different people who share a name
* Manual CSV and vCard exports, and the CSV opens in Excel and other spreadsheet apps
* Retention by age — keep the newest backups per day, week, and month with counts you choose (for example 7 daily, 4 weekly, 3 monthly), so the recent past stays densely backed up while older history thins out — or simply keep the last N sets
* Choose the app language and system, light, or dark theme from the Display menu
* Create a problem report from About and choose whether to include technical diagnostics before sharing it with an email or sharing app
Libre Contacts Backup is free and open source. If you find it useful, you can support its development — see the donation options in the project README: https://librecontactsbackup.ashkanrafiee.com/#donate
捐助
版本
雖然在下方可選擇下載 APK 檔案，但要留意這樣的安裝方式將不會收到更新通知，是一種較不安全的下載方法。建議您先安裝 F-Droid 用戶端使用。
下載 F-Droid-
此版本需要 Android 8.0 或更高的版本。
此套件包由原開發者建置和簽署，並保證與此原始碼 Tarball 保持一致。
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此版本需要 Android 8.0 或更高的版本。
此套件包由原開發者建置和簽署，並保證與此原始碼 Tarball 保持一致。
-
此版本需要 Android 8.0 或更高的版本。
此套件包由原開發者建置和簽署，並保證與此原始碼 Tarball 保持一致。
新版本 2.8.0
Fixed:
- Scheduled backups now ask for permission to run at the exact time you set (Android 12 and above); when it is missing, the main screen and a notification say so and open the right settings page
- The main screen now shows why a scheduled backup was skipped or failed instead of cutting the message off
- Two backups made within the same second no longer share a name, and a just-finished backup is always kept
- Scheduled backups now ask for permission to run at the exact time you set (Android 12 and above); when it is missing, the main screen and a notification say so and open the right settings page
- The main screen now shows why a scheduled backup was skipped or failed instead of cutting the message off
- Two backups made within the same second no longer share a name, and a just-finished backup is always kept
新版本 2.7.4
Fixed:
- Automatic backups are more reliable: when a schedule is set, the app now offers to turn off battery optimization so the system no longer delays or skips them
- The schedule screen warns while battery optimization is on or background activity is restricted, with a button that opens the right settings page
- Automatic backups are more reliable: when a schedule is set, the app now offers to turn off battery optimization so the system no longer delays or skips them
- The schedule screen warns while battery optimization is on or background activity is restricted, with a button that opens the right settings page