"Initially simple it quickly descends into obsessive, head-scratching territory; your brain will thank you."
- GamesWithPurpose

"...the kind of brain-training that Nintendo's Floating-Japanese-Doctor-Head-Guy would approve of."
- JayIsGames

"...simple mechanics to give players the tools and space to hang themselves if they aren't careful."

Also available (FREE):
"9 - a Puzzle Made of Numbers" -- 72 handmade levels, 27 ∞ REMIX puzzles.


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What's New

Version 2.0.7

64-bit app update

Customer Reviews

5 out of 5

8 Ratings

8 Ratings

Great game


I love this game add more levels

10 is a ten!


Don't be deceived by the simple premise: 10 is a game about adding numbers to form sums of 10, but the process of combining the numbers is anything but simple. If a 4 and a 6 are adjacent to each other, you're in luck--slide the 4 into the 6 and both will merge into a single block with the desired sum of 10. But if the 4 and 6 are on opposite sides of the grid, you'll likely have to think harder, since you may not want the 4 to combine with other numbers as you slide it.

Forming sums of 10 not only helps you to complete a level, but also to create blockers in your grid so that you can navigate the other numbers to where they need to go.

As you play, you'll encounter a variety of interesting challenges: negative numbers, multipliers that change the value of other numbers, and sliding tiles.

I haven't really done the game justice here: The concept is utterly original and quite fun. Give it a try!

Challenging... Yet soothing?


Wonderful logic game. It works your brain while the swelling background music is relaxing and almost meditative. I haven't cursed at my phone even once while playing it, and that alone sets it apart from every other game I tinker with. The puzzles are well-designed and increase in difficulty at just the right pace. And I dig the weird little prizes at the end of each level-- a cup of espresso, a red rotary phone? Can't wait to see what's next! Perfect for whimsical math nerds. Great job devs! ☕️☎️🍦


28.1 MB
Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2013-14 IOJOE LTD


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    With Family Sharing set up, up to six family members can use this app.

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