Grabarchuk Puzzles has LetsTans Deluxe (iTunes Link) in the iTunes App Store for FREE (normally $3.99) for a limited time.

Now, after a year of developing here is the DELUXE version of LetsTans. It contains NO adds and NO in-apps! ALL new puzzles will be added for FREE!! Discover the biggest tangram app ever – 1250 puzzles and counting.