# Blackjack 21! vs rare numbers

The clearest difference is in-app purchases: rare numbers at none against Blackjack 21!'s 5. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Blackjack 21! sells 5 one-off in-app purchases. rare numbers asks for nothing beyond the download.

Blackjack 21! ships an update every 3 months, rare numbers every 4 months. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Blackjack 21! | rare numbers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (6.1K ratings)](https://appshunter.io/ios/app/blackjack-21/id1001387844/reviews)** | — |
| Number of ratings | **6.1K** | — |
| Positive reviews | 71.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 209 MB | 13 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Do More Mobile, LLC.](https://appshunter.io/developer/318729104) | [Kevin Griffing](https://appshunter.io/developer/1772253467) |

## What reviewers say

### Blackjack 21!

[App page](https://appshunter.io/ios/app/blackjack-21/id1001387844)

Experience the thrill of Blackjack with this free casino-style card game. Enjoy authentic Las Vegas rules, customizable tables, and detailed stat tracking. Learn to play with helpful hints and master the game with advanced options like Double Down and Splits.

**Highlights:** Free to play, Las Vegas rules, HD graphics and table customization, Stat tracking, Double Down, Splits, Insurance, Surrender, Deck shuffle animation, Customizable options

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blackjack 21 - 35,000 Chips | $4.99 | one-time |
| Black Jack Premium Upgrade | $6.99 | one-time |
| Blackjack 21 - 100,000 Chips | $9.99 | one-time |
| Blackjack 21 - 250,000 Chips | $19.99 | one-time |
| Blackjack 21 - 600,000 chips! | $39.99 | one-time |

**What reviewers like**

- 🎮 Fun game
- 💡 Good learning tool
- 👍 Great interface
- 🕹️ Enjoyable gameplay
- 🕰️ Useful for passing time

**What reviewers complain about**

- 💸 Too many ads
- 🎲 Dealer advantage
- 🤖 Questionable randomization
- 💰 Aggressive in-app purchases
- 🚫 Unfair gameplay

**Reported bugs**

- Crashes after updates
- Inability to close some ads
- Incorrect payout for split hands
- Disappearing chip balances

**Requested features**

- Multiple deck support
- Option to walk away after winning
- Multiplayer mode
- More betting options
- Improved card draw randomization


### rare numbers

[App page](https://appshunter.io/ios/app/rare-numbers/id6744262836)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Blackjack 21! free?

Blackjack 21! is free to download, with in-app purchases available.

### Is rare numbers free?

rare numbers is free to download, with no in-app purchases.

### Do Blackjack 21! or rare numbers have ads?

Both Blackjack 21! and rare numbers show ads.

### Which is updated more often, Blackjack 21! or rare numbers?

Blackjack 21! ships an update every 3 months, and rare numbers every 4 months. Most recently, Blackjack 21! was updated on November 1, 2026 and rare numbers on October 25, 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.*