Chain It! app for iPhone and iPad

Chain It! Is a simple, slick and extremely addictive number puzzle game to test your maths skills.

Each level features a number grid with a randomly generated correct path for you to unlock. Start simple and work your way up through the levels.

Use your finger to draw the correct maths sequence between the number squares in groups (or “Chains”) of 3. Numbers can be linked by adding, subtracting , dividing or multiplying a adjacent number by calculating neighbouring numbers to finish on a result number. If you release your finger and are correct you collect your points and continue the chain starting from the old result number.

Rack up bonus points for chaining multiple sets on a single drag and top the Game Center Chain-It! leaderboard.