Stacker

Test your reflexes with Stacker!
When the game starts, touch the top part of the screen to stop the moving cell and start a stack.
Now touch again to stop the cell in the next row.
If you stop a cell that isn't directly above the last cell you stopped, you lose.
If you can make a full stack of 7 cells, you win!
Be careful, the cells move faster as you work your way up.
Keep playing to complete the stack in the lowest amount of time and try to improve your win rate!