Koofr v4.4.0
APK · 9.4 MB · version code 40400 · Android 7.0+ · uploaded Sep 24, 2025
- Same certificate as v4.2.20, which matches Google Play Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v4.10.0, uploaded Aug 23, 2026 — about 11 months after this one.
- Size: this file is 9.4 MB; the latest is 10.1 MB (770.3 KB larger).
- Both versions request the same permissions.
File information
- Version
- v4.4.0 (40400)
- Uploaded
- Sep 24, 2025
- Size
- 9.4 MB
- Requires
- Android 7.0+ (API 24)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 4a377d48eaefd7a86d5ee6377b108596
- Signing certificate (SHA-1)
- 60:2B:D7:BC:F7:6A:1F:3E:40:26:9C:44:0F:61:D9:00:00:EF:9B:76
- Signed by
- CN=Luka Zakrajsek, O=Koofr, L=Ljubljana, C=SI
- File name
- net-koofr-app-40400-71771282-4a377d48eaefd7a86d5ee6377b108596.apk
- Package
- net.koofr.app
- Downloads (all versions)
- 2K
- Age rating
- PEGI 3 · Everyone
What's new in v4.4.0
This time, we have spent some time improving the upload and download experience: long-running upload and download jobs should perform better, and media upload and backup functionality should cater to peculiarities of various media producing apps as well as upload later changes to media files. Scrolling through lots of thumbnails has been made smoother. Finally, you can now use Koofr in Japanese, Korean and Polish language, courtesy of our users' translations.
Permissions (20)
This version requests 20 permissions, 6 of them sensitive.
- Access media location Sensitive android.permission.ACCESS_MEDIA_LOCATION
- Camera Sensitive android.permission.CAMERA
- Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
- Read media images Sensitive android.permission.READ_MEDIA_IMAGES
- Read media video Sensitive android.permission.READ_MEDIA_VIDEO
- Read media visual user selected Sensitive android.permission.READ_MEDIA_VISUAL_USER_SELECTED
- Authenticate accounts android.permission.AUTHENTICATE_ACCOUNTS
- Foreground service data sync android.permission.FOREGROUND_SERVICE_DATA_SYNC
- Full network access android.permission.INTERNET
- Internal broadcast protection (app-defined) net.koofr.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Manage accounts android.permission.MANAGE_ACCOUNTS
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Read sync settings android.permission.READ_SYNC_SETTINGS
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Show notifications android.permission.POST_NOTIFICATIONS
- Use credentials android.permission.USE_CREDENTIALS
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
- Write sync settings android.permission.WRITE_SYNC_SETTINGS
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate issued to “Koofr” This is the certificate of the Google Play version.
- Same certificate as v4.2.20, which matches Google Play v4.2.20
Store checks
- Developer signature verified Sep 24, 2025
- Uploaded by “catappult” Platinum tier · 1,377 followers · uploading since 2018
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (6 other versions compared). AAPKs doesn't scan files itself.
How to install Koofr on Android 7.0+
You'll need about 18.7 MB of free space.
- Download the APK — tap Download APK above (9.4 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap net-koofr-app-40400-71771282-4a377d48eaefd7a86d5ee6377b108596.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 4a377d48eaefd7a86d5ee6377b108596. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Koofr — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 7.0+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.