If you're a musician, you'll enjoy today's music-related app pick. Strumtune merges a metronome, instrument tuner, and tone generator into an easy to navigate and beautifully designed app. It's not only important to exercise your ears but your entire body. For that, you should check out today's fitness app, one which will introduce you to the benefits of Yoga. And finally, for those who aren't up for the calm and inner peace stuff, check out Sarge HD, a comedic comic-style side-scrolling brawler all about kicking butt.
All app prices are subject to change at any time and without notice regardless of stated free duration. Price changes are solely under the control of the developers.
iPhone:
Cover Orange ($0.99 -> Free, 18.2 MB): A cloud carrying poison rain is moving towards the exposed orange population and you must cover all of the oranges before it’s too late in this physics-based puzzle game. To do so, just drop objects from the top of the screen into the playing field below. The game features 300 levels, realistic physics, and Game Center integration.
Cover Orange is available for free today only (01/11). It has a 5-star rating with a total of 27219 ratings.
Battery Manager Pro - Ultimate Battery App ($1.99 -> Free, 5.4 MB): View battery health, get estimates on how long you can perform a particular activity at a certain battery level, run routine battery maintenance, and get informed about some battery life preserving tips all within a few quick taps.
Battery Manager Pro - Ultimate Battery App is available for free for a limited time. It has a 3-star rating with a total of 883 ratings.
Disc Pool ($0.99 -> Free, 3.6 MB): Enjoy this billiards-style game, originally available at miniclip.com, solo or with a friend. The game features a challenging three difficulty level single player mode, plus multiplayer support via Game Center, Bluetooth, or Pass'n Play.
Disc Pool is available for free today only (01/11). It has a 3-star rating with a total of 8609 ratings.
Strumtune™ ($2.99 -> Free, 9.6 MB): Tune any chromatic instrument, guitar, bass, violin, or ukulele with ease. Strumtune features a metronome, tuner, and tone generator in a very slick three pane interface. Swipe left or right to change tools, and use flicks and drags to adjust controls.
Strumtune™ is available for free today only (01/11). It has a -star rating with a total of ratings.
YogaWorkout.com PRO by LifeApps, LLC ($2.99 -> Free, 11.0 MB): If you haven't tried Yoga, now's the time. YogaWorkout.com Pro briefly explains and takes you through six different Yoga flows and sequences, including videos, to help keep your body flexible and relaxed.
YogaWorkout.com PRO by LifeApps, LLC is available for free for a limited time. It has a 4.5-star rating with a total of 6 ratings.
Universal:
480 BC: The Spartans ($0.99 -> Free, 38.4 MB): In this action-strategy game, command your army of Spartans against the Persian forces in waves of glorious battle. The game features both campaign and survival modes, plus Game Center support.
480 BC: The Spartans is available for free today only (01/11). It has a 5-star rating with a total of 4 ratings.
iPad:
Pocket Dinosaurs 1 HD ($2.99 -> Free, 61.0 MB): The dinosaurs are trying to escape extinction and to do that they must create a giant tower. Tilt your iDevice to catch, thus stacking, the dinosaurs as they fall. The game features a "fruit" mode, a tabletop multiplayer mode, and Game Center integration.
Pocket Dinosaurs 1 HD is available for free today only (01/11). It has a 5-star rating with a total of 13 ratings.
Sarge HD ($4.99 -> Free, 78.8 MB): Play as Sarge, a take-no-prisoners killing machine, and save the inhabitants of Zephyr from an alien attack in this side-scrolling brawler. The game includes a storyline driven by comic book-like cutscenes, six action packed levels, hand-drawn artwork, on-screen controls, and Game Center integration.
Sarge HD is available for free for a limited time. It has a 3-star rating with a total of 1 ratings.
That concludes today's issue of Apps Gone Free. If you like staying on top of these daily deals, don't forget to check out our free AppsGoneFree app. 
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