The app is totally safe for downloading. Thermatk's FreeHold is the developer of HSE Wifi which can be found in the Educational category. The overall user rating of the tool is 4.6.
The most recent release was on Feb 25, 2016 and this application was downloaded and installed by over 1K users. It's free of charge to get the installer of HSE Wifi, also, you can read users' reviews on Droid Informer. The app runs on Android 4.0 and above.