This download is completely safe. Union Data Soluções em TI is the creator of Grupo Rezende that is listed among the Lifestyle category. The overall score for the tool is 4.3 on Google Play.
The most recent release was on Dec 3, 2018 and this application was downloaded and set up by over 100 users. It's free of charge to download the installation package of Grupo Rezende, also, you can take a look at users' reviews on Droid Informer. The app works fine on Android 4.1 and above.