MNUM2 for Android was created using Cordova, so Google Play reports it has full network access. The application doesn't send any other requests anywhere in the network except for AdMob. Your privacy therefore depends on what info Google Play gets from you (if you have the APK file from Google Play...). I get from Google Play and AdMob as much info as all other developers of all other applications, nothing else.
In other words: This app does not collect any information about the user or report back any usage statistics except for AdMob.