Style-7's Memory Puzzle-7 challenges players to fit four basic shapes, each made of four squares, into a grid of cells. You can rotate pieces, move them around, and remove them from the field, as long as you haven't added another piece. Memory Puzzle-7 is free with ads, though a Pro upgrade is available, too.
Two game types: Puzzle mode is a traditional shape puzzle, while Memory mode briefly displays a finished puzzle and gives you a minute to restore all the pieces.
Four levels: Four levels of difficulty -- For children, Very easy, Easy, and Normal -- means Memory Puzzle-7 is for everyone. The first level, For children, resembles the large wooden picture puzzles favored by very young players, though the abstract shapes add an extra challenge.
Play anywhere: Easy-to-see puzzle grids and easy-to-master taps make Memory Puzzle-7 a good choice to play under less-than-ideal conditions.
Help file: Tapping "Help" opens a brief page of instructions, which is a lot more than most Android apps offer.
None really: Memory Puzzle-7 is basic in conception and play, challenging on many levels, and suitable for players of different ability. It's ad-supported, but Memory Puzzle-7's banner ads are about as unobtrusive as they come these days, so it's hard to complain.
There's nothing especially exciting or fascinating about Memory Puzzle-7, though we did prefer Memory mode over Puzzle mode. It's just a good, basic puzzle concept, suitable to any player and delivered in a reasonably unobjectionable ad-supported package. What more do you need?