Port Knocker is an open-source (MIT) Android app by Darnell Andries. The APK we host is 3.4 MB, it needs Android 4.4 or newer, and it declares 1 permission.
The file on this page is Port Knocker 1.0, 3.36 MB, and it installs on Android 4.4 and newer.
We compared the signing certificate of this build with the certificate recorded the first time ca.andries.portknocker entered the site, and published both the file's SHA-256 and the certificate's fingerprint above so you can check the download yourself. That comparison says the file was not repackaged by someone else; it is not a review of what the app does.
The manifest inside the APK declares 1 permission, none of which cover contacts, location, SMS, the camera or the microphone.
Its licence is MIT. We took this build from F-Droid, and the source for this exact version is linked below.
The most recent release upstream is from Dec 29, 2020, over 5 years ago. It still installs; it is simply not being updated.
We do not show a star rating or an install count for this page: we have no measured figure for either, and a number we cannot source is worth less than an empty field.
- Version
- 1.0
- Size
- 3.36 MB
- Requires Android
- API 19
- Package
- ca.andries.portknocker
- Signature checked on
- Sep 22, 2026
- Where this file came from
- F-Droid
- Licence
- MIT
- Source code
- Source for this version
File SHA-256: f54d6d05f299ba2b2e7c351a411b9531ee7fd95b3af02d59cb50b74ef30ea017
Signing certificate (SHA-256): 4b209f9bbdaf5230e394624589601b8d15f736e6e2f521456b90a1c0eb66542d
We check that this file carries the same signing certificate as earlier releases of the same package. That shows the APK was not repackaged by someone else — it is not a security review of the app.
Declared permissions
- INTERNET
