The app is totally safe for downloading. Kluchevaya Voda is the official developer of Ключевая вода that can be found in the Shopping category. The most recent update was on Oct 21, 2020 and the tool was downloaded and installed by over 5K users.
According to the latest data, this application is rated 3.8 on Google Play. It's free to get the installer of Ключевая вода, also, you can have a look at users' reviews on Droid Informer. The app works fine on Android 4.4 and above.