It's safe to download the app. Alphacomm Digital Commerce is the official developer of Congstar that can be found in the Shopping category. Users rated the tool 3.2 on Google Play.
This application was downloaded and set up by over 10K users and its latest stable update was on Oct 15, 2020. Download the setup package of Congstar 3.1.2 free of charge and check out users' reviews on Droid Informer. The app can be launched on Android devices 5.0 and above.