XXI puzzles require a sum of 21 in every row and column. Move the gems around on the board until a solution is found. All gems have a unique numerical value, but watch out for the special gem that can be either a 1 or 11. Puzzles get harder as you progress your way through all 200 levels. Can you become a XXI champion?

- 200 Unique & Challenging Puzzles
- Game Center Achievements (V, X, L, C, CC)
- Game Center Leaderboard for Highest Level
- Beautiful Music, Sounds, and Retina Graphics
- Universal App looks Great on iPhone and iPad
- Share Solution Photos with Friends

Thanks for playing XXI by TMSOFT and good luck!


What’s New

Version 1.4

This app has been updated by Apple to use the latest Apple signing certificate.

iPhone X support and additional improvements under the hood.

Ratings and Reviews

4.9 out of 5
16 Ratings

16 Ratings

Daughter of Zeus ,

Nice challenge

Fun and challenging without being frustrating. A little easy to start, but by the 100th level, it starts to get interesting.

TMOSuberfan ,

Lost hours

Really addictive platform that made me lose time and stay up waaaaaay too late. Save some for Dad now

Blondie gee ,

Another win

TM Soft does it again with an addicting and challenging game that keeps me entertained in waiting rooms, passenger seats of cars, and at work.

App Privacy

The developer, TMSOFT, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • 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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