Enjoy solving mathematical puzzles with your family in Meritum Soft’s Reiner Knizia’s Yoku-Gami. We also have a music player that allows you and a friend to listen to different tunes through the same headphones, and a funky arcade game.

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:

Think happy thoughts! Happynote ($0.99 → Free, 11.0 MB): Record the positive events in your life with this diary app. It asks you to supply up to three positive events each day, helping you keep a more upbeat mood. Each event can be rated, and you can share them via email, Twitter, Facebook, or Evernote. Events can also be viewed on a calendar, or you can watch them scroll by on a slideshow. The app includes passcode protection, the ability to export your events, and daily reminders.

Think happy thoughts! Happynote is available for free for a limited time. It has a 4.5-star rating with a total of 6 ratings.

Soaring ($1.99 → Free, 14.6 MB): Soar through virtual skies with this weather app. It utilizes your GPS location and the current time to determine the location of the sun and moon in your virtual sky. Of course, it’s also able to display the time and weather conditions. The app includes 12-hour and 24-hour time display options, Fahrenheit and Celsius temperature options, and the ability to tweet about the weather from within the app.

Soaring is available for free for a limited time. It has a 4.5-star rating with a total of 128 ratings.

Reiner Knizia’s Yoku-Gami ($1.99 → Free, 15.8 MB): The perfect puzzle game for the entire family. Your job is to try and clear all of the numbers from the board. To accomplish this task, you must slide your finger over adjacent number tiles to group them up. The largest number in your group must equal the total of all of the other numbers to perform a successful turn. Try to clear entire rows and columns, because that’s the only way you’ll receive new numbers. The game includes three modes, and achievements and leaderboards via Game Center.

Reiner Knizia’s Yoku-Gami is available for free today only (06/23). It has a 4.5-star rating with a total of 56 ratings.

Universal:

Double Player for Music with Headphones Pro(Listen 2 songs simultaneously with headphones) ($0.99 → Free, 5.9 MB): The music app you never knew you needed. It allows you to play two different songs through the same set of headphones. It’s perfect for those situations where you’re with someone else and don’t want to listen to the same music, like on a plane, train, or bus. Each person has their own set of playback and volume controls, and you can swap the two songs between earbuds with a tap.

Double Player for Music with Headphones Pro(Listen 2 songs simultaneously with headphones) is available for free for a limited time. It has a 4-star rating with a total of 21 ratings.

Min – A Space Adventure ($2.99 → Free, 124.6 MB): Inspire the people of Min by collecting energy from the planet’s core in this arcade game. You’re able to pilot your rocket around boulders, giant rock worms, and toxic gas just by sliding your finger across the screen. Collect cMats along the way to upgrade your rocket and the planet. The game includes a variety of environments, loads of upgrades, and achievements and leaderboards via Game Center.

Min – A Space Adventure is available for free for a limited time. It has a 4-star rating with a total of 35 ratings.

Let’s Learn How To Draw ($1.99 → Free, 23.2 MB): Your child can learn to how to draw trains, puppies, and adorable little monsters with this educational app. Each lesson will take your child through every step of the process. An assist mode is available for younger learners, which creates perfect lines from their strokes. There’s also a scratchpad mode where they can just have at it. The app includes five lessons per category, a coloring mode, four pen sizes, and the ability to export your child’s work.

Let’s Learn How To Draw is available for free today only (06/23). It has a 4-star rating with a total of 43 ratings.

Funky Smugglers ($0.99 → Free, 42.6 MB): Monitor the X-ray scanner and remove all of the wacky contraband the passengers are attempting to travel with in this arcade game. As they travel through the scanner, you’ll see passable items light up as green and dangerous ones light up as orange. Tap and drag to flick the bad items away while leaving the good ones behind. You’re able to score combo points by gathering multiple bad items together before flicking them out of the screen. The game includes a funky 70s-style theme and soundtrack, power-ups, massive team battles, and achievements and leaderboards via Game Center.

Funky Smugglers is available for free today only (06/23). It has a 4.5-star rating with a total of 66 ratings.

iPad:

Reiner Knizia’s Yoku-Gami HD ($1.99 → Free, 50.7 MB): The perfect puzzle game for the entire family. Your job is to try and clear all of the numbers from the board. To accomplish this task, you must slide your finger over adjacent number tiles to group them up. The largest number in your group must equal the total of all of the other numbers to perform a successful turn. Try to clear entire rows and columns, because that’s the only way you’ll receive new numbers. The game includes three modes, and achievements and leaderboards via Game Center.

Reiner Knizia’s Yoku-Gami HD is available for free today only (06/23). It has a 4.5-star rating with a total of 24 ratings.

Star Rover HD – Explore the Universe ($1.99 → Free, 12.8 MB): This educational app turns your iPad into a portable planetarium. To search the sky, just hold your iPad up in the air and Star Rover HD will tell you what you’re looking at. The app is able to calculate all objects in the sky in real-time, resulting in moon phases, planet positions, stars, and other objects appearing just the same as the real ones. The app includes 120,000 stars, all 88 constellations, planets and their moons, the ability to manually search the sky, and detailed info for all items.

Star Rover HD – Explore the Universe is available for free today only (06/23). It has a 4.5-star rating with a total of 308 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.
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