The download of the app doesn't contain viruses or any kind of malware. Union Data Soluções em TI is the developer of Unionweb that can be found in the Lifestyle category. The latest update of this application was released on Sep 15, 2019 and the tool has been set up by over 100 users.
It's free to get the installer of Unionweb, also, you can read users' reviews on Droid Informer. The app runs on Android 4.4 and above.