A free program for Android, by Marker Studios.

If you want to kill time or do something during your leisure time, then you should consider downloading this application called Level Up Numbers. Level Up Numbers is a child-friendly game that has a simple objective. The objective of this game is to add numbers to reach the highest possible number in total. With this fun game, you can play this with your friends, cousins, and family and see who is the better player. If you want to enjoy its services, you should definitely install this application on your phone. Lastly, this application is designed for free without any subscription.