The download of this application doesn't contain viruses or any kind of malware. Zorcraft is the creator of the app that refers to the Puzzle Games category. The latest update of the game was released on Jan 13, 2014 and Num has been set up by over 100 users.
Google Play displays that this application is rated 2.4 by its users. Download the setup package of Num 1.7 that is absolutely free and have a look at users' reviews on Droid Informer. The app can be launched flawlessly on Android 2.2 and above.