# Zero21 Card Game vs Fan Jam!

The clearest difference is rating: Fan Jam! at 4.8 against Zero21 Card Game's 4.0. Fan Jam! also leads on update cadence (every 4 days vs every 65 months) and ratings volume (16 vs 3). 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.

Fan Jam! holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Fan Jam! has 16 ratings behind it against 3, so its average is the more settled of the two.

Zero21 Card Game ships an update every 65 months, Fan Jam! every 4 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Zero21 Card Game | Fan Jam! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (3 ratings)](https://appshunter.io/ios/app/zero21-card-game/id1550265606/reviews) | **[4.8 (16 ratings)](https://appshunter.io/ios/app/fan-jam/id6499515722/reviews)** |
| Number of ratings | 3 | **16** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 65 months | **Every 4 days** |
| Monetization | Ad-supported | Ad-supported |
| Size | 58 MB | 96 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Le Nhung](https://appshunter.io/developer/1436505077) | [Virtual Projects Oyun Yazilim Ve Teknoloji](https://appshunter.io/developer/1327820445) |

## What reviewers say

### 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


### Fan Jam!

[App page](https://appshunter.io/ios/app/fan-jam/id6499515722)

A fast-paced puzzle game where players clear grids of stacked propellers by matching colors. Tap to send propellers to a dock and match three of the same color to remove them, strategizing to overcome jammed and stacked pieces.

**Highlights:** Grid-based propeller matching, Tap to send propellers to dock, Match three of the same color, Overcome stacked propellers, Brain-teasing puzzle strategy

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zero21 Card Game free?

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

### Is Fan Jam! free?

Fan Jam! is free to download, with no in-app purchases.

### Which has better reviews, Zero21 Card Game or Fan Jam!?

Fan Jam! is rated higher. Zero21 Card Game averages 4.0 out of 5 from 3 ratings, while Fan Jam! averages 4.8 from 16 ratings.

### Do Zero21 Card Game or Fan Jam! have ads?

Both Zero21 Card Game and Fan Jam! show ads.

### Which is updated more often, Zero21 Card Game or Fan Jam!?

Zero21 Card Game ships an update every 65 months, and Fan Jam! every 4 days. Most recently, Zero21 Card Game was updated on November 3, 2026 and Fan Jam! on November 4, 2026.

---

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