Fast and challenging mathematical game based on INCO. Rules are fair simple: Select a cell to reduce by one it's value and the value of all those in the same row and column. Reset to zero all the cells to clear a level and move to the next. Twenty levels of increasing difficulty to challenge even the most brilliant mind. And you, on which level will you give up?
Ohmnibus is the developer of the app that is related to the Puzzle Games category. CrossAdd has been downloaded and installed by over 1K users and its most recent release is dated Jun 8, 2014. The game has the overall rating 4.4 on Google Play.
There are advertisements in this application. It's free of charge to download the installation package of CrossAdd, also, you can have a look at users' reviews on Droid Informer. The app runs on Android 1.6 and higher. The app is completely secure to download.