KK+

 

KK+ is really Kenken.  Not a new concept at the app store.  However, the grid sizes go up to 9x9.


I've never been a huge fan of kenken.  Killer Sudoku is more my cup of tea.


330 puzzles.  I did about 5 of them.
https://itunes.apple.com/gb/app/kk+/id1073689863?mt=8
http://www.stormtek-games.com/main/index.php/games/kk-


Sudoku Killer: I've spent way too much time on this. But it's brilliant.