Polymer, which is described as a strategic shape-creating game, asks players to slide columns and rows to create completed shapes. It is available for both the iPhone and the iPad, and offers cloud syncing and multiplayer gameplay.
A polymer, in the parlance of the game, is a complete shape, one with no unfinished edges. You achieve this by sliding rows and columns back and forth to move pieces into place. A skilled player might be able to use every piece on the board, but each piece you move takes six or nine others with it. Larger creations become exponentially more difficult to make without disruption, but they're oh so satisfying to reach for. It's almost a shame to destroy them, but that's where the points come in.
Polymer is normally priced at $1.99, but it can be downloaded from the App Store for free for a limited time. [Direct Link]