Very nice but packs are expensives

Very nice app. You will spend many hours on it ;-)

But packs are too expensives!
You should consider to decrease the price if you want more players!
BTW sometimes, when theres no doubt about a series (everything is filed from an edge), you can automaticaly check (uncolor) indices.

Dadoo.net about Pic-a-Pix: Nonogram Color, v1.3