What's New

• bug fix
• faster cards

App Description

Welcome to Zone 21 - Math Solitaire a Brand New Mathematics game where you can win Real World Rewards and Cash Prizes (where available)!

Remove the cards from the board and try to stay between 0 and 21. Keep the target number close to 21 for more points. Exactly 21 will give you best points.

Some Key Features:
• Classic Solitaire Card game with some amazing twists!
• Clear the cards from table and stay between 0 and 21.
• Ready for the challenge? Try to hit the target number 21 and get the great bonuses.
• Play for free as long as you want without constantly sitting through ads.

Multiplayer Features:
• Play against friends and solitaire around the world!
• Calculate cards as quick as you can! You have 3 minutes to beat your opponent.
• Win and show off your scores on the leaderboard!

Earn Prizes:
• Challenge people from around the world
• Put your skills to the test and compete to win cash prizes!
• Cash rewards for top scorers (where allowed)!

Download Zone 21 - Math Solitaire and test your calculating skills today!

If you have any questions or proposals to the game, we hope you contact us at [email protected]
If you have any questions about the Skillz system or cash tournaments please contact: [email protected]

iPhone Screenshots

(click to enlarge)

Zone 21 - Math Solitaire screenshot 1 Zone 21 - Math Solitaire screenshot 2 Zone 21 - Math Solitaire screenshot 3 Zone 21 - Math Solitaire screenshot 4 Zone 21 - Math Solitaire screenshot 5

iPad Screenshots

(click to enlarge)

Zone 21 - Math Solitaire screenshot 6 Zone 21 - Math Solitaire screenshot 7 Zone 21 - Math Solitaire screenshot 8 Zone 21 - Math Solitaire screenshot 9 Zone 21 - Math Solitaire screenshot 10

App Changes

  • November 05, 2019 Initial release
  • November 26, 2019 New version 1.0.1
  • July 15, 2020 New version 1.0.5
  • July 16, 2020 New version 1.0.6