Duetto is an open-source (GPL-3.0-or-later) Android app by Paolo Benvenuto. The APK we host is 43 MB, it needs Android 7.0 or newer, and it declares 19 permissions.
The file on this page is Duetto 0.9.21, 42.59 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 com.duetto 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 19 permissions, including access to the camera, the microphone and phone state. Android asks you to approve those the first time the app needs them.
Its licence is GPL-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
- 0.9.21
- Size
- 42.59 MB
- Requires Android
- API 24
- Package
- com.duetto
- Signature checked on
- Oct 30, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-3.0-or-later
- Source code
- Source for this version
File SHA-256: e212ff6a0ff3ca361af67ae3a54b5911a6fd6e9e274338ad6b0675d435855a75
Signing certificate (SHA-256): f4ad697fca93635926457bca101bd893cbb2ff67fdb53c3181baa95bd3da3c14
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
- VIBRATE
- POST_NOTIFICATIONS
- WAKE_LOCK
- FOREGROUND_SERVICE_CAMERA
- FOREGROUND_SERVICE_MICROPHONE
- FOREGROUND_SERVICE
- BLUETOOTH_CONNECT
- MODIFY_AUDIO_SETTINGS
- CAMERA
- RECORD_AUDIO
- ACCESS_NETWORK_STATE
- INTERNET
- FOREGROUND_SERVICE_SPECIAL_USE
- CHANGE_NETWORK_STATE
- RECEIVE_BOOT_COMPLETED
- REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
- MANAGE_OWN_CALLS
- READ_PHONE_STATE
- com.duetto.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Screenshots


