◇◇◇Red Dot Communication Award 2016◇◇◇
◇◇◇Muse Creative Awards - Platinum Award Winner◇◇◇
◇◇◇Digital Ehon (Picture Book) Award 2017 Winner◇◇◇
◇◇◇Appeared on Japanese Popular Drama◇◇◇

Math with Lovable Numbers!

SUM! is a fun math game that teaches the concept of addition and subtraction through play. In the app, the nature of the numbers is represented as the personality of the characters. Just as each child has a unique individuality, each number has a unique face and personality! It’s an app for not just kids, but for everyone, to enjoy adding and subtracting to build familiarity with numbers. Spot lots of fun secret tricks by touching lovable numbers!

SUM! Soundtrack!!-original-soundtrack-single/id1032625101?l=en

SUM Team
Mac Funamizu: App Concept, Design, Animation
Takaharu Matsumoto: Character Design
Goichi Hirakawa: Programming
Shintaro Tanaka: Music

Related Info


What’s New

Version 1.17

Thanks for updating the app!

1.17 The design of the main character "Uno" has been updated. Now it's even cuter than ever!

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

Tweogan ,

Lovely game!

Cute voices and nice mechanics. I wish there was more control when subtracting, and that bonuses would go higher than 10x. I look forward to other game modes, thank you!


Enfani Inc.
98.7 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Japanese

Age Rating
Rated 4+
© 2018 Enfani Inc.


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

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

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