AFWall+ (Android Firewall +) v4.0.3
APK · 12.5 MB · version code 20260301 · Android 5.0+ · uploaded May 31, 2026
- Signature matches the Google Play version 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 v4.1.0, uploaded Aug 6, 2026 — about 2 months after this one.
- Size: this file is 12.5 MB; the latest is 12.5 MB (8.3 KB larger).
- Android: this version needs Android 5.0+; the latest needs Android 6.0+. Use this one if your device runs an older Android release.
- Both versions request the same permissions.
File information
- Version
- v4.0.3 (20260301)
- Uploaded
- May 31, 2026
- Size
- 12.5 MB
- Requires
- Android 5.0+ (API 21)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- d39cdd4fc34ce3880913f40e9dd59542
- Signing certificate (SHA-1)
- 91:16:C1:5C:B9:04:4A:51:D8:8E:5F:A5:32:9D:BC:BF:E1:8F:A1:09
- Signed by
- CN=Umakanthan Chandran
- File name
- dev-ukanth-ufirewall-20260301-74987008-d39cdd4fc34ce3880913f40e9dd59542.apk
- Package
- dev.ukanth.ufirewall
- Downloads (all versions)
- 500K+
- Age rating
- PEGI 3 · Everyone
What's new in v4.0.3
* Switch to NDK for nflog, busybox and iptables.
* Notification related issues and bug fixes.
* Security issues. It break custom rules again. Please check github for workaround
* Allow blocking localhost connection
* Storing iptables.log with time and location
* High contrast mode theme
* Bug: Hostnames are not show in the logs
* Ability to copy domain/hostname in the logs.
Permissions (13)
This version requests 13 permissions, 1 of them sensitive.
- Bluetooth connect Sensitive android.permission.BLUETOOTH_CONNECT
- Bluetooth android.permission.BLUETOOTH
- Bluetooth admin android.permission.BLUETOOTH_ADMIN
- Foreground service special use android.permission.FOREGROUND_SERVICE_SPECIAL_USE
- Full network access android.permission.INTERNET
- Internal broadcast protection (app-defined) dev.ukanth.ufirewall.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Show notifications android.permission.POST_NOTIFICATIONS
- Use biometric hardware android.permission.USE_BIOMETRIC
- Use fingerprint hardware android.permission.USE_FINGERPRINT
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on May 31, 2026.
- Certificate issued to “Umakanthan Chandran” This is the certificate of the Google Play version.
- Same certificate as the 3 other versions checked
Store checks
- Developer signature not checked yet May 31, 2026
- Validated against Google Play May 31, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (3 other versions compared). AAPKs doesn't scan files itself.
How to install AFWall+ (Android Firewall +) on Android 5.0+
You'll need about 24.9 MB of free space.
- Download the APK — tap Download APK above (12.5 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 dev-ukanth-ufirewall-20260301-74987008-d39cdd4fc34ce3880913f40e9dd59542.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 d39cdd4fc34ce3880913f40e9dd59542. 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 AFWall+ (Android Firewall +) — 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 5.0+). 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.