Play as a famous knight and go on the hunt for gems in Chillingo’s swinging arcade game, Super Knights. We also have a finance app that will help you tip the right amount, and an interactive entertainment app that has your child joining Beck and Bo on their amazing train trip.

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:

Pain & Depression Relief | AmbiScience™ Body and Mind Utility ($0.99 → Free, 235.1 MB): A brainwave audio app that will help you deal with pain and depression. It’s able to put you in the right state of mind by playing binaural and isochronic tones. The app includes 20 ambient tracks, 13 nature sounds and sound samples, six entrainment programs, the ability to create your own custom programs, repeating alarms, a countdown timer, and a full set of instructions.

Pain & Depression Relief | AmbiScience™ Body and Mind Utility is available for free for a limited time. It has a 4-star rating with a total of 29 ratings.

Lulu Brush Time ($0.99 → Free, 143.0 MB): This educational app helps your child establish a regular brushing routine. A cute raccoon named Lulu accompanies them while they brush their teeth for two full minutes. Your child can also help Lulu brush his teeth through an interactive game. They can also earn colorful reward badges for completing brushing related tasks.

Lulu Brush Time is available for free for a limited time. It has a 5-star rating with a total of 14 ratings.

Spooky Xmas ($0.99 → Free, 180.8 MB): Rescue survivors and keep your dojo safe from the zombie invasion in this castle defense game. As the ghastly beasts approach, just swipe your fingers over them to lop off bits and pieces. You can utilize multiple fingers to do the deed, but be careful not to swipe over dynamite-laden zombies or survivors. The game includes 20 types of creatures, dojo upgrades, and achievements and leaderboards via Game Center.

Spooky Xmas is available for free for a limited time. It has a 4.5-star rating with a total of 12 ratings.

Infect Them All : Zombies ($0.99 → Free, 11.3 MB): A zombie arcade game where you finally get to cause all of the mayhem. The object of the game is to turn regular people into zombies to rapidly spread the infection and eat others to keep up your own strength. Just steer your zombie into citizens via touch or tilt controls to turn them. The game includes three modes, 50 levels, six playable zombies, 23 types of people to infect, seven upgradeable attributes, and achievements and leaderboards via Game Center.

Infect Them All : Zombies is available for free for a limited time. It has a 4-star rating with a total of 3809 ratings.

GlobeTipping – Tipping Calculator & Advisor ($0.99 → Free, 5.9 MB): This finance app helps you find out how much to tip no matter where in the world you are. The app’s streamlined interface makes it remarkably easy to calculate a tip. Just enter the bill amount, define the amount of people and tip percentage, and the per person total will be calculated automatically. You can also browse through a list of more than 200 countries to discover how much to tip. Countries can also be searched for and added to favorites.

GlobeTipping – Tipping Calculator & Advisor is available for free for a limited time. It has a 4-star rating with a total of 58 ratings.

Universal:

Beck and Bo ($0.99 → Free, 29.6 MB): Your child can join Beck and Bo on their amazing train trip with this interactive entertainment app. It includes 12 different scenes that slowly introduce different items, which can be freely placed by tapping and dragging. Whenever an item is touched, your child will hear its name and the sound it makes. The app includes multitouch support, and hundreds of items and sounds.

Beck and Bo is available for free today only (12/07). It has a 5-star rating with a total of 5 ratings.

Rabbids Go HD ($1.99 → Free, 98.8 MB): An entertainment app that allows you to torture and interact with your very own Rabbid. Poke, slap, shake, tickle, and generally just try to frustrate your Rabbid in every way you can imagine to unlock all kinds of content. You can also snap a photo with your Rabbid and share it with the world. The app includes a bunch of different Rabbid wallpapers, photos, comics, and videos.

Rabbids Go HD is available for free for a limited time. It has a 3.5-star rating with a total of 60 ratings.

Colouring Farm Touch To Colour Activity Colouring Book For Kids and Family Preschool Ultimate Edition ($0.99 → Free, 19.1 MB): Make the lives of the farm animals a little more colorful in this interactive children’s coloring book. Your child can fill in more than 10 different scenes just by tapping on the colorless canvases. As your child works their way through each scene, new interactive creatures and items will appear. The app also includes helpful hints, so even young children can join in on the fun.

Colouring Farm Touch To Colour Activity Colouring Book For Kids and Family Preschool Ultimate Edition is available for free for a limited time. It has a 5-star rating with a total of 10 ratings.

Super Knights ($0.99 → Free, 39.5 MB): Take control of one of the famous Super Knights and try to fill your pockets with gems in this swinging arcade game. Tap to deploy your grappling hook at just the right moment to spin around the pegs and collect gems. Use your speedy reflexes to change directions and avoid attacks from your enemies. You can spend your gems on all kinds of upgrades, power-ups, and even enlist new knights. The game also includes achievements and leaderboards via Game Center.

Super Knights is available for free for a limited time. It has a 4.5-star rating with a total of 363 ratings.

iPad:

Spooky Xmas HD ($0.99 → Free, 183.0 MB): Rescue survivors and keep your dojo safe from the zombie invasion in this castle defense game. As the ghastly beasts approach, just swipe your fingers over them to lop off bits and pieces. You can utilize multiple fingers to do the deed, but be careful not to swipe over dynamite-laden zombies or survivors. The game includes 20 types of creatures, dojo upgrades, and achievements and leaderboards via Game Center.

Spooky Xmas HD is available for free for a limited time. It has a 5-star rating with a total of 11 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.