Zero21 is a challenging game with a simple rule:

Try to stay between 0 and 21. It's not easy!

Zero21 Solitaire is a fun numbers game with solitaire flavor to relax and unwind while keeping your mind sharp.

Collect all the number cards on the board while keeping your sum between 0 and 21.


What’s New

Version 2.4

Minor bug fixes and enhancements

Ratings and Reviews

4.6 out of 5
4.7K Ratings

4.7K Ratings

toddmhardin ,

Too many ads

Please give an option to support you instead of ads every time win lose or continue.

Plaid11 ,

Very fun and easy but...

I really do enjoy this game. It takes a little strategy but not much thought which is pretty nice. The part that I have an issue with is if I need a max or min card and watch an ad, it should automatically apply the card. It’s not like the cards can be saved and used on a different level so just use the card automatically after watching the ad. The way my mind sees it, I click on a card to use it. When I click on the min or max card to watch an ad, that’s me selecting the card. So I’ve had multiple times where I lose the level because of that and I select another card without selecting the min or max card again. Give a setting for an option to have it automatically added or manually add it. I have no problem with the ad situation like many others have. Their frustration comes with they don’t understand the difference from a 30 second ad and a 5 second ad that you have to hit the fast forward button (only on some).

faaron ,


Unlike most people on here, I don’t mind ads. I know that’s how the game makes money with nickel and dime-ing you constantly and that’s ok with me. Yeah, there’s a lot but so what?
My issue is that the unlockables are not tied to gameplay whatsoever. There’s no incentive to win or complete levels other than just for the gameplay itself. That leaves the game feeling empty and lackluster. I’d suggest some sort of coin collection system that can be used to purchase the card sets, rather than just unlocking them via ads. This also goes for the daily challenges; these really aren’t special because there’s no building incentive to play them. Institute a reward system and the game will improve so much!


Rollic Games Oyun Yazilim ve Pazarlama Anonim Sirketi
162.6 MB

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



Age Rating
In-App Purchases
  1. Remove Ads $2.99


  • Family Sharing

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

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