The app is completely secure for downloading. Glaxo SmithKline PLC is the creator of GRIT that can be found in the Medical tools category. According to the latest data, the tool is rated 4.1 on Google Play.
Over 0,5K users set up this application and the latest update was released on Sep 21, 2018. You can download the setup package of GRIT 1.0.5 for free and have a look at users' reviews on Droid Informer. The app works fine on Android 2.3 and higher.