# Bluff Game vs Zero21 Card Game

The clearest difference is in-app purchases: Zero21 Card Game at none against Bluff Game's 4. Bluff Game's advantage is ads (none vs shown) and update cadence (every 6 weeks vs every 65 months). On price and device support there is nothing between them.

Both are free to download. Bluff Game sells 4 one-off in-app purchases. Zero21 Card Game asks for nothing beyond the download.

Bluff Game ships an update every 6 weeks, Zero21 Card Game every 65 months. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Bluff Game | Zero21 Card Game |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (3 ratings)](https://appshunter.io/ios/app/zero21-card-game/id1550265606/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 65 months |
| Monetization | — | Ad-supported |
| Size | 77 MB | 58 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [MELLONX MEDYA YAZILIM ANONIM SIRKETI](https://appshunter.io/developer/1483994472) | [Le Nhung](https://appshunter.io/developer/1436505077) |

## What reviewers say

### Bluff Game

[App page](https://appshunter.io/ios/app/bluff-game/id1483994473)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chip 50K | $1.99 | one-time |
| Chip 275K | $9.99 | one-time |
| Chip 720K | $24.99 | one-time |
| Chip 2800K | $89.99 | one-time |


### 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 Bluff Game free?

Bluff Game is free to download, with in-app purchases available.

### Is Zero21 Card Game free?

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

### Do Bluff Game or Zero21 Card Game have ads?

Zero21 Card Game shows ads; Bluff Game does not.

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

Bluff Game ships an update every 6 weeks, and Zero21 Card Game every 65 months. Most recently, Bluff Game was updated on October 13, 2026 and Zero21 Card Game on October 14, 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.*