An extra charging brick for your iPhone and iPad is technically a want, although it often really feels like a need. Dexim’s Visible Green Smart Charger costs about $5 more than Apple’s replacement 10W USB Power Adapter ($29, www.apple.com), and Apple’s cable even throws in a 6-foot extension cord. But the Smart Charger can shave some pennies off your electric bill, since it shuts itself off when your gadget is charged or disconnected.

LostWinds 2: Winter of the Melodias sounds like it could be a Pixar film: using the power of the wind, a boy goes on a quest to find his missing mother in a faraway land. Exploration and puzzle-solving make innovative use of that wind, letting you move a finger across the touchscreen to “draw” the path of a gust, which the young protagonist Toku can use to jump, move objects, or otherwise interact with his environment, to name a few abilities.

Offering only nine pre-set filters, no digital zoom, and two flash options (fully on or off), KLIK by Face.com is by no means a great camera. But what this social media camera app does offer is facial recognition software that learns and grows smarter with every use. And while it lacks fancy editing options, it does the job it sets out to do with remarkable skill.

Polymer's about as basic a puzzler as they come, requiring players to slide tiles into place to assemble large, amorphous shapes. The larger the shape, the more points are rewarded. Simple, right? But there's a catch: entire columns need to be shifted around, making a game of Polymer more like futzing with a Rubik’s Cube than simply swapping tiles.