Hydra

UGent - Dienst StudentenActiviteiten

Tools

Hydra is an open-source (MIT) Android app by UGent - Dienst StudentenActiviteiten. The APK we host is 4.1 MB, it needs Android 5.0 or newer, and it declares 10 permissions.

The file on this page is Hydra 3.7.4-open, 4.06 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 be.ugent.zeus.hydra.open 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 10 permissions, including access to precise location 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.

F-Droid, who build and sign this package, flag it: it ships assets (art, sounds, data) that are not free and relies on a network service that is not open source. We pass that on as they recorded it — we have not tested the app ourselves.

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 · 4.06 MB

Version: 3.7.4-open
Size: 4.06 MB
Requires Android: API 21
Package: be.ugent.zeus.hydra.open
Signature checked on: Sep 18, 2026
Where this file came from: F-Droid
Licence: MIT
Source code: Source for this version

File SHA-256: 8739905964519123f4a181557f50c7cbb3b04d352777e872b092069401d0c6f2

Signing certificate (SHA-256): 2b57409159f4eaed4956de7d66f27010342eeb6c1b753ffdb10f4db88d4450fc

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.