Spend your Christmas morning fighting off skeleton warriors in Skull Legends! We also have an app that allows you to snuggle up with your iPad and learn about Antarctica, and an iOS 7-inspired unit converter.

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:

Demolition Master 3D: Holidays ($1.99 → Free, 53.2 MB): Like the original Demolition Master, only you get to flatten structures in holiday settings with colorful explosives!

You’re provided with a limited amount of explosives, and you must attach them to weak points in each structure in order to bring them down. Try to hit fireworks and complete challenges to earn even more points. The game includes 60 levels, three types of explosives, and achievements and leaderboards via Game Center.

Demolition Master 3D: Holidays is available for free for a limited time. It has a 5-star rating with a total of 14 ratings.

Converti ($0.99 → Free, 3.3 MB): With a design inspired by iOS 7, this utility app will help you convert units quickly and efficiently.

It has 20 different categories to choose from, and hundreds upon hundreds of units to convert. You’re able to disable categories you don’t intend to use to make the list more manageable. You can also favorite those you use the most often by tapping and holding on your results. The app includes search, the ability to flip your results, six color themes to choose from, and the ability to use your own photo as a background.

Converti is available for free for a limited time. It has a 4-star rating with a total of 8 ratings.

Skull Legends ($0.99 → Free, 112.6 MB): Combine first-person shooter mechanics with tower defense elements and you get Skull Legends.

Arm yourself with powerful bows, magic potions, and combat bracers to stand your ground and keep the skeleton warriors from breaching your walls. Just pull back and release to fire upon your enemies. Try to aim for their heads to conserve energy and block their defenses. But it’s not all about brute force, as you’ll have to place defense towers in strategic positions to keep the hordes at bay. The game includes 24 levels, 15 enemy types, six tower types, and two difficulty settings.

Skull Legends is available for free for a limited time. It has a 4-star rating with a total of 154 ratings.

Universal:

Pinball HD ($1.99 → Free, 388.4 MB): A compilation of Gameprom’s three most popular pinball tables.

It features The Deep, Jungle Style, and Wild West pinball all in one neat package. Just tap the sides of the screen to control each flipper. If your ball gets stuck, shake your iDevice to shake the table. Pinch or pull your fingers apart to toggle the camera. The game includes hidden locations to discover, and achievements and leaderboards via Game Center. Additional tables are available via in-app purchase.

Pinball HD is available for free for a limited time. It has a 4.5-star rating with a total of 11729 ratings.

iPad:

Demolition Master 3D HD: Holidays ($1.99 → Free, 53.5 MB): Like the original Demolition Master, only you get to flatten structures in holiday settings with colorful explosives!

You’re provided with a limited amount of explosives, and you must attach them to weak points in each structure in order to bring them down. Try to hit fireworks and complete challenges to earn even more points. The game includes 60 levels, three types of explosives, and achievements and leaderboards via Game Center.

Demolition Master 3D HD: Holidays is available for free for a limited time. It has a 5-star rating with a total of 11 ratings.

Antarctica by KIDS DISCOVER ($2.99 → Free, 310.5 MB): An engrossing education app that will teach your child all about Antarctica.

Take a tour of the coldest, driest, iciest, and windiest place on the planet. The app covers topics ranging from ice formations to how to dress to survive such an extreme environment. Pages are absolutely loaded with interactive 3-D models, high definition video and audio, detailed photographs, animations, and even a few games and puzzles.

Antarctica by KIDS DISCOVER is available for free for a limited time. It has a 5-star rating with a total of 18 ratings.

ChartIQ Practice Trading Simulator ($19.99 → Free, 23.6 MB): Hone your market trading skills with this business app.

Work on your investing skills without any financial risk by analyzing and trading against historical markets. You’re able to choose from seven practice conditions, like market correction, sideways market, and bear market, and then move through time at your own pace. As you start to rack up gains or losses, you can look back at your trade sheet to see how you would have faired. The app also includes nine count and 13 buy/sell indicators, the ability to calculate and plot moving averages, standard drawing tools and indicators, and a full set of historical S&P securities with randomly selected entry points to utilize.

ChartIQ Practice Trading Simulator is available for free for a limited time. It has a 4.5-star rating with a total of 18 ratings.

Skull Legends HD ($2.99 → Free, 118.6 MB): Combine first-person shooter mechanics with tower defense elements and you get Skull Legends.

Arm yourself with powerful bows, magic potions, and combat bracers to stand your ground and keep the skeleton warriors from breaching your walls. Just pull back and release to fire upon your enemies. Try to aim for their heads to conserve energy and block their defenses. But it’s not all about brute force, as you’ll have to place defense towers in strategic positions to keep the hordes at bay. The game includes 24 levels, 15 enemy types, six tower types, and two difficulty settings.

Skull Legends HD is available for free for a limited time. It has a 4-star rating with a total of 149 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. It provides all the deals each day, and even an archive of past deals that are still active.

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.
  • The app must not have been free numerous times (3+) over the last six months.
  • The free version of your app must not include ads.

To submit an app, simply send a request to tyler@appadvice.com with the subject “Apps Gone Free.” Please include the name of the app, a link to it in the App Store, when and for how long you intend to offer the app for free, and anything else you would like to share. We will take it from there.