Today’s Apps Gone Free: Harmony 3, ShapeThat, Slide Tetromino and More

Rearrange colorful blocks, frame your favorite photos, and collect keys by melting ice with today’s collection of apps and games.

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.

Universal:

Addition and Subtraction Math Flashcard Match Games for Kids in 1st and 2nd Grade ($5.99 → Free, 38.4 MB): Your children can work on their addition and subtraction skills with this educational game. It’s ideal for parents and teachers with children ages five through eight.

Addition and Subtraction Flashcard Match Games creates a fun environment for your child to practice addition and subtraction in with its eye-popping visuals and positive encouragement. Your child can work on matching problems to their answers or matching problems to other problems. The difficulty can be adjusted by changing the number range and by showing the cards or keeping them face down. The game also includes a bubble popping reward after each round.

Addition and Subtraction Math Flashcard Match Games for Kids in 1st and 2nd Grade is available for free for a limited time. It has a 5-star rating with a total of 8 ratings.

ShapeThat ($0.99 → Free, 38.3 MB): Frame your favorite photos with a dizzying amount of shapes, symbols, words, and letters with ShapeThat. It’s a great way to make your photos stand out.

You’re able to import photos from your library and Facebook, or snap new ones from within the app. You can then choose from more than 400 mask options. You’re able to adjust the size, color, and opacity of each mask separately. When everything looks just right, share your new creations via Twitter, Facebook, Instagram, or email.

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

har•mo•ny 3 ($2.99 → Free, 235.2 MB): It’s up to you to rearrange the colorful blocks according to a palette of colors that blend together harmoniously. Harmony 3 is ideal for anyone looking for a puzzle game that’s easy on the eyes, music to the ears, and challenging to the brain.

Harmony 3 is a masterful extension of the original puzzle games by BorderLeap. It comes as close to puzzling perfection as you can get. The object of the game is to swap out blocks with a tap in order to get them to match the color palette. Blocks can only be swapped in vertical or horizontal rows. The number of moves each block can make is indicated by the black dots on top of them. You absolutely must use up all of the moves for each block to complete the puzzles. Matching only the colors isn’t good enough. Harmony 3 includes hundreds of challenging levels and some new holiday themes ones.

har•mo•ny 3 is available for free for a limited time. It has a 4-star rating with a total of 88 ratings.

Slide Tetromino Premium ($0.99 → Free, 57.9 MB): Collect keys by melting the ice around them in Slide Tetromino. It’s for fans of sliding puzzle games.

Each level includes a single flame, movable pieces, and very little room to operate in. It’s up to you to slide the pieces every which way in order to create a path from the frozen key to the flame. Levels aren’t timed, but your moves will be counted. The game includes a total of 100 levels.

Slide Tetromino Premium is available for free for a limited time. It has a 5-star rating with a total of 17 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.