Calcis+ app for iPhone and iPad

Xmas Special!!! Unlocking Equations Game Mode is FREE during December!

Calcis is entertaining and educating calculus game targeted to players of all ages. From childhood for learning basic calculus to senior citizens brain activation exercising. Its just plain fun to challenge a friend to a match. Players can play single player games or play with a friend in two player game either using the same i-device or via Game Center with friends and other people Game Center auto-matches you with. Enabling Game Center takes you to leaderboards also!

In Sigma Cluster Game you claim tile clusters of same value tiles. The sum (or sigma) of the tile values in the claimed cluster is added to your points.

In new Timed Sigma Cluster Game you claim tile cluster and try to hit the target sum as fast as you can.

Win 25 multiplayer Game Center matches and graduate or purchase Calcis Pro to unlock another exciting game mode: Equations.