Pocket Sudoku

If I can't find any new thing I can do in my Sudoku I have to hit the hint
button. Most time I get angry with myself that I didn't see what the hint
shows me.
What would be great if the hint is not shown immediately. Perhaps it would
be possible if the hint is made by three steps.
First hit on the hint button => Just write the hint text like "naked double
found".
Second hit on the hint button if the user didn't yet find the naked double
=> Tell the user with which candidate(s) the hint was found.
If the user still didn't find the hint and hits the button again, the hint
is shown like it is now by writing the hint, showing the candidates and
coloring the fields.

Keep up the good work
Maik