You are able to download the installer of Gut Shabbos 1.0 for free and have a look at users' reviews on Droid Informer. The app requires Android 4.1 and above. It's secure to download this application. The tool was originally developed by Agence Française d'Applications Mobiles and it belongs to the Educational category.
The developer rolled out a new version of Gut Shabbos on Oct 1, 2016 and over 100 users downloaded and installed the app. This application has been rated 5 on Google Play.