openDSP-4x4 is an open-source (AGPL-3.0-or-later) Android app by Ian Williams. The APK we host is 1.6 MB, it needs Android 7.0 or newer, and it declares 1 permission.
The file on this page is openDSP-4x4 0.2.2, 1.61 MB, and it installs on Android 7.0 and newer.
We compared the signing certificate of this build with the certificate recorded the first time net.opendsp.x4x4 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 1 permission, none of which cover contacts, location, SMS, the camera or the microphone.
Its licence is AGPL-3.0-or-later. 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.
- Version
- 0.2.2
- Size
- 1.61 MB
- Requires Android
- API 24
- Package
- net.opendsp.x4x4
- Signature checked on
- Sep 17, 2026
- Where this file came from
- F-Droid
- Licence
- AGPL-3.0-or-later
- Source code
- Source for this version
File SHA-256: 7a6b5f09519db1551fa6257001dcca5b87afc54d06347e0d01ad4b66987084f7
Signing certificate (SHA-256): 12b4463c8a6a356c64a743ed912a047b05a210f113829de15c71b748e63fe2a1
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
- net.opendsp.x4x4.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Screenshots
