# Mahjong Numbers vs Zero21 Card Game

The clearest difference is review sentiment: Mahjong Numbers at 71% against Zero21 Card Game's 0%. Mahjong Numbers also leads on rating (4.7 vs 4.0) and update cadence (every 2 months vs every 65 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mahjong Numbers holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Mahjong Numbers has 141 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 71% of Mahjong Numbers's written reviews are positive against 0% of Zero21 Card Game's.

Mahjong Numbers ships an update every 2 months, Zero21 Card Game every 65 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Mahjong Numbers | Zero21 Card Game |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (141 ratings)](https://appshunter.io/ios/app/mahjong-numbers/id462914696/reviews)** | [4.0 (3 ratings)](https://appshunter.io/ios/app/zero21-card-game/id1550265606/reviews) |
| Number of ratings | **141** | 3 |
| Positive reviews | **70.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 65 months |
| Monetization | Ad-supported | Ad-supported |
| Size | 6 MB | 58 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [John Rouda](https://appshunter.io/developer/396597129) | [Le Nhung](https://appshunter.io/developer/1436505077) |

## What reviewers say

### Mahjong Numbers

[App page](https://appshunter.io/ios/app/mahjong-numbers/id462914696)

Experience a unique twist on the classic tile-matching puzzle game. Instead of traditional symbols, you'll match numbered tiles across hundreds of handcrafted levels. Enjoy a relaxing, brain-training experience that's easy to learn and satisfying for both new and experienced players.

**Highlights:** Numbered tiles for a fresh challenge, Hundreds of handcrafted levels, No timers for relaxed play, Brain training and focus enhancement, Modern Mahjong experience

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Zero21 Card Game

[App page](https://appshunter.io/ios/app/zero21-card-game/id1550265606)

This number puzzle game challenges you to keep your score between 0 and 21 by collecting cards. Utilize power-up cards and strategic choices to navigate diverse levels and daily challenges. It's a fun, relaxing way to train your brain.

**Highlights:** Keep score between 0 and 21, Collect number cards, Use power-up cards, Unlock new card collections, Daily challenges, Diverse card layouts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mahjong Numbers free?

Mahjong Numbers is free to download, with no in-app purchases.

### Is Zero21 Card Game free?

Zero21 Card Game is free to download, with no in-app purchases.

### Which has better reviews, Mahjong Numbers or Zero21 Card Game?

Mahjong Numbers is rated higher. Mahjong Numbers averages 4.7 out of 5 from 141 ratings, while Zero21 Card Game averages 4.0 from 3 ratings.

### Do Mahjong Numbers or Zero21 Card Game have ads?

Both Mahjong Numbers and Zero21 Card Game show ads.

### Which is updated more often, Mahjong Numbers or Zero21 Card Game?

Mahjong Numbers ships an update every 2 months, and Zero21 Card Game every 65 months. Most recently, Mahjong Numbers was updated on November 1, 2026 and Zero21 Card Game on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*