SAI

Aefyr

Tools

SAI is an open-source (GPL-3.0-only) Android app by Aefyr. The APK we host is 4.3 MB, it needs Android 5.0 or newer, and it declares 6 permissions.

The file on this page is SAI 4.5, 4.30 MB, and it installs on Android 5.0 and newer.

We compared the signing certificate of this build with the certificate recorded the first time com.aefyr.sai.fdroid 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 6 permissions, none of which cover contacts, location, SMS, the camera or the microphone.

Its licence is GPL-3.0-only. We took this build from F-Droid, and the source for this exact version is linked below.

The most recent release upstream is from Mar 6, 2021, 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.

Download APK · 4.30 MB

Version: 4.5
Size: 4.30 MB
Requires Android: API 21
Package: com.aefyr.sai.fdroid
Signature checked on: Sep 22, 2026
Where this file came from: F-Droid
Licence: GPL-3.0-only
Source code: Source for this version

File SHA-256: cb96838c9a64b401bfff8c604b10712cdc7a1d96ea09b6a445cfd5b35702fc72

Signing certificate (SHA-256): b8f6faa69e3b3f9fa62543243582e03e35d2f2d84e62d8d086e883849dce006d

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.