After putting together all four of the puzzles provided in an early version of the "big brother, 2,000 piece" version of this, I was initially disappointed that this app only has 500 piece puzzles. However, after putting together my first choice, I decided that I like it, because I am a bit of an addict when it comes to putting a puzzle together; once I start, I am compulsive about working it until it is finished. It was nice to able to finish the 500 pieces in 8 hours instead of 80 hours for the 2,000 pieces.
I have tried several other puzzle apps and I like the shapes of the puzzle pieces of this app much better than the others--they are more true to what a real puzzle is like. It did take me some time to really figure out how I wanted to arrange pieces in boxes, but after I learned how to manipulate the pieces, the app flowed well. Once I learned to make the zoom percentage of the boxes that I was working with equal, it made looking for pieces much easier.
I do wish that there were puzzle choices that had more contrast. A puzzle should be fun to put together, not frustrating. The 2,000 piece version of this now has the capability for you to make any picture that you want into a puzzle; hopefully that capability will be added to this app soon.
Give us some more choices with bright colors so we can have fun and I'll give it 5 stars.