It's safe to download the app. Universo/Asoec is the creator of Unitri which relates to the Educational category. The tool was downloaded and installed by over 10K users and the most recent stable release was on Oct 10, 2020.
Google Play shows that this application is rated 3.8 by its users. You are able to get the installer of Unitri 5.0.7 free of charge and take a look at users' reviews on Droid Informer. The app requires Android 4.1 and above.