Water Quality is an open-source (GPL-2.0-only) Android app by hc51t. The APK we host is 10 MB, it needs Android 8.0 or newer, and it declares 7 permissions.
The file on this page is Water Quality 1.0, 10.05 MB, and it installs on Android 8.0 and newer.
We compared the signing certificate of this build with the certificate recorded the first time com.yinmik.waterquality 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 7 permissions, including access to precise location. Android asks you to approve those the first time the app needs them.
Its licence is GPL-2.0-only. 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
- 1.0
- Size
- 10.05 MB
- Requires Android
- API 26
- Package
- com.yinmik.waterquality
- Signature checked on
- Sep 19, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-2.0-only
- Source code
- Source for this version
File SHA-256: d8b3df29f80157c9ddc00082388dc09777b1fb123c990ad2391d9e5503c88e5f
Signing certificate (SHA-256): 8d1f85dff19a53ea06badab84ca494ce93a50ad03f642141a1424f54963d3227
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
- BLUETOOTH_SCAN
- BLUETOOTH_CONNECT
- BLUETOOTH
- BLUETOOTH_ADMIN
- ACCESS_FINE_LOCATION
- POST_NOTIFICATIONS
- com.yinmik.waterquality.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Screenshots
