Keep track of how you spend your time each and everyday with App Nerds' utility app, Sessions: Time Tracker. We also have a 3D tower defense game, and a beautiful matching game for iPad.
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:
Tetra Sketch ($0.99 -> Free, 14.3 MB): This puzzle game requires you to fill in empty grids by drawing tetraminoes, which are geometric forms composed of four connected squares. In each of the 192 levels you're provided with a limited amount of shapes to draw, so you'll have to figure out the best way to place each one. The game also includes a three-star rating system, simple tap and swipe controls, and achievements and leaderboards via Game Center.
Tetra Sketch is available for free for a limited time. It has a 4.5-star rating with a total of 7 ratings.
Sessions: Time Tracker ($0.99 -> Free, 2.3 MB): Keep track of how you spend your time with this productivity app. It can be used as a personal tool to see how you spend your free time, or, if you're a freelance contractor, you can use it to actually track your hours and earnings in real-time. The app includes session history, six color schemes, notes, and the ability to export project data via email.
Sessions: Time Tracker is available for free for a limited time. It has a 5-star rating with a total of 3 ratings.
Universal:
Designer! ($9.99 -> Free, 1.0 MB): Create vector graphics in a snap with this easy to use productivity tool. The app allows you to draw free-form custom shapes, or pixel-perfect arrows, squares, rectangles, and circles. It also includes a color picker, the ability to add text, and the ability to save and manage multiple projects.
Designer! is available for free for a limited time. It has a 4-star rating with a total of 36 ratings.
Mission 452 ($0.99 -> Free, 7.3 MB): It's the year 2542 and Earth has been destroyed, so it's up to you to pilot the starship Eviscerate-1 through waves of enemies in search of a new home planet in this side-scroller. Steer your ship by tilting your iDevice, and fire upon your enemies by tapping on them. You are provided with three lives to make it through as many waves of enemies as possible, so make them count. The game also includes iCade support, and achievements and leaderboards via Game Center.
Mission 452 is available for free for a limited time. It has a 4.5-star rating with a total of 7 ratings.
Tiny Dict ($0.99 -> Free, 1.2 MB): A remarkably simple offline dictionary for your iPhone and iPad. Tiny Dict utilizes Apple's built-in dictionary database to provide you with word definitions without requiring internet access. It also includes history.
Tiny Dict is available for free for a limited time. It has a 4-star rating with a total of 6 ratings.
SimplePhysics ($1.99 -> Free, 6.6 MB): A game that will put your engineering skills to the test. Each level requires you to design complex structures that are able to support a specific amount of weight for a limited time without collapsing. You’re provided with a limited amount of cash as well, so you’ll want to place beams only where they are necessary. The game includes 11 levels, the ability to test your structure with weights or your fingers, the ability to save, load and share designs, and online leaderboards.
SimplePhysics is available for free for a limited time. It has a 4.5-star rating with a total of 7207 ratings.
Mosquito Madness ($0.99 -> Free, 11.8 MB): Keep the mosquitoes off of the running redneck in this endless distance game. Mosquitoes of all shapes and sizes enter the screen from all angles, and you must furiously tap them to squash them before they reach your character. Each squashed bug earns you coins, which can be used to purchase all kinds of power-ups and character upgrades. The game also includes 50 voice clips, and leaderboards via Game Center.
Mosquito Madness is available for free for a limited time. It has a 4.5-star rating with a total of 18 ratings.
You Jump! ($0.99 -> Free, 16.7 MB): An endless climbing game where you can actually be the hero and the villain. Before the game begins, you're able to snap a picture of yourself and take on the role of each character. Then it's time to climb your way up the Game Center leaderboards by tilting your iDevice to safely land on platforms. The game also includes five unlockable worlds, and a variety of power-ups.
You Jump! is available for free for a limited time. It has a 4.5-star rating with a total of 36 ratings.
iPad:
Azkend HD ($4.99 -> Free, 30.7 MB): This highly polished matching game from 10tons requires you to drag your finger across tiles with matching emblems to destroy them and reveal the eight powerful talisman. The game includes two modes, beautiful backdrops, and achievements via Game Center.
Azkend HD is available for free for a limited time. It has a 4-star rating with a total of 310 ratings.
Total Defense 3D HD ($1.99 -> Free, 39.2 MB): Defend your base from the onslaught of enemy vehicles in this 3D fixed-path tower defense game. You're able to build towers by simply tapping and dragging them into place. Towers can also be upgraded with the money you earn from destroying your enemies. The game includes 19 missions, four tower types with five skill sets each, three levels of difficulty, and achievements and leaderboards via Game Center.
Total Defense 3D HD is available for free for a limited time. It has a 4-star rating with a total of 103 ratings.
DrawingStar - Take me, Draw me, No happier than me! ($0.99 -> Free, 26.6 MB): An entertainment app that allows your child to get creative with colors, stamps, and stickers. The app provides your child with an open canvas that can be covered with over 300 stickers, 21 stamps, and all kinds of colors of paint, pencil, crayon, and marker. Your child's creations can then be shared via Facebook, email, iTunes File Sharing, or printed off via AirPrint.
DrawingStar - Take me, Draw me, No happier than me! is available for free for a limited time. It has a 4.5-star rating with a total of 10 ratings.
Elements App - Chemistry Periodic Table ($1.99 -> Free, 4.1 MB): This educational app is able to help your child learn about and memorize periodic table elements. It includes a color-coded and interactive periodic table that displays detailed information for each element. It also includes a symbol quiz and an atomic number quiz, both of which can be customized in a variety of ways.
Elements App - Chemistry Periodic Table is available for free for a limited time. It has a 4.5-star rating with a total of 37 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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Developers:
If you are a developer who would like to get your app included in our “Apps Gone Free” daily lists, here’s our basic set of rules:
- It must have at least a three-star average rating at the time it goes free.
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