It's secure to download the app. G-Terf UFRB is the creator of M-LABS that can be found in the Educational category. Google Play displays that the tool is rated 3.1 by its users.
This application was downloaded and set up by over 1K users and its most recent stable release was on Mar 13, 2018. Take the opportunity to get the installation package of M-LABS 1.0.5 free of charge and have a look at users' reviews on Droid Informer. The app is designed for Android 4.3 and above.