Backtalk

kys0ff

Backtalk is an open-source (MIT) Android app by kys0ff. The APK we host is 5.2 MB, it needs Android 6.0 or newer, and it declares 19 permissions.

The file on this page is Backtalk 0.4.1, 5.15 MB, and it installs on Android 6.0 and newer.

We compared the signing certificate of this build with the certificate recorded the first time off.kys.backtalk 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 declares 19 permissions, including access to the microphone and the camera. Android asks you to approve those the first time the app needs them.

Its licence is MIT. We took this build from F-Droid, and the source for this exact version is linked below.

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.

Download APK · 5.15 MB

Version: 0.4.1
Size: 5.15 MB
Requires Android: API 23
Package: off.kys.backtalk
Signature checked on: Sep 18, 2026
Where this file came from: F-Droid
Licence: MIT
Source code: Source for this version

File SHA-256: 9b95773bc80f358abe7c11ad9f96d40d4f01d43e92864a41e2971f16f32158da

Signing certificate (SHA-256): cbab9f1c4c952659b37104307f698037b7985bdd998d2a1cfddf7b0ebbdf5ecd

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.