It's secure to download the app. Ulab.sumdu.edu.ua is the official developer of AR in Engineering Graphics that can be found in the Educational category. Google Play shows that the tool is rated 3.9 by its users.
Over 1K users installed this application and the latest update was launched on Sep 22, 2017. Download the setup package of AR in Engineering Graphics 3.0 free of charge and have a look at users' reviews on Droid Informer. The app runs on Android devices 4.0 and above.