Some tiles are greater than 10 though! Double tap on them if they're even and they are divided by 2.
Kaleido 10 has the potential to be a really fun puzzle. However, there are too many tiles greater than 10.
A better game is NineOut.
This blog focuses on GREAT, FUN PUZZLE APPS for the ipad, iphone and ipod. If you are creating your own puzzle app and want it reviewed, contact me at LinkedIn. Tom Cutrofello