MNUM for Andoid was created using Cordova, so Google Play reports it has full network access. The application doesn't send any requests anywhere in the network. 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 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.