It's secure to download the app. St2000 created Oposiciones Matemáticas DEMO that falls into the Libraries & Demo category. The tool has been downloaded and set up by over 0,5K users and the most recent update is dated Nov 25, 2013.
According to the latest info, this application is rated 2.8 on Google Play. Download the installation package of Oposiciones Matemáticas DEMO 1.0 that is provided for free and take a look at users' reviews on Droid Informer. The app is developed for Android 1.5 and above.