With the very simple aim of helping you, dear users, to solve Sudoku Grids, we are happy to present our Sudo-Clue Application.

Its interface is very simple to use and intuitive.
Probably the first in its category: Sudo-Clue doesn't spoil the solution of the grid you are working on. Indeed, it will give you the opportunity to continue your search by yourself giving you only on-demand clues to the solution.

Furthermore, the solutions are calculated in less than 3 seconds (experimented on Android 5.0.2. Octa-Core Processor at the cadency of 1.8 GHz).

Finally, for your pleasure, Sudo-Clue can be used offline (the so-called Aeroplane Mode).
It means that you will be able to use it everywhere.