# Deck 21 vs SimpleJack 21

The clearest difference is in-app purchases: Deck 21 at none against SimpleJack 21's 10. Deck 21 also leads on ads (none vs shown) and update cadence (daily vs fortnightly). On price and device support there is nothing between them.

Both are free to download. SimpleJack 21 sells 10 one-off in-app purchases. Deck 21 asks for nothing beyond the download.

Deck 21 ships an update daily, SimpleJack 21 fortnightly. Both last shipped on October 28, 2026.

## The numbers

| Metric | Deck 21 | SimpleJack 21 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (6 ratings)](https://appshunter.io/ios/app/simplejack-21-blackjack-game/id6758989812/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 74 MB | 47 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +17 |
| Developer | [Andre Salvador](https://appshunter.io/developer/1584863518) | [FIRST POINT YAZILIM LIMITED SIRKETI](https://appshunter.io/developer/1866019552) |

## What reviewers say

### Deck 21

[App page](https://appshunter.io/ios/app/deck-21/id6743880049)

**Features:** macOS Compatibility

**In-app purchases:** none


### SimpleJack 21

[App page](https://appshunter.io/ios/app/simplejack-21-blackjack-game/id6758989812)

Practice your blackjack strategy with a modern, minimalist simulator. Enjoy realistic gameplay, offline play, and unlockable customizations. Perfect for beginners and experts alike to hone their card skills.

**Highlights:** Offline gameplay, Realistic 6-deck system, Progression and customization, Cryptographic RNG for fair play, Minimalist design

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5k Coins | $0.99 | one-time |
| Welcome Pack | $1.99 | one-time |
| 18k Coins | $2.99 | one-time |
| Remove Ads | $3.99 | one-time |
| Welcome Pack Pro | $4.99 | one-time |
| 65k Coins | $6.99 | one-time |
| Summer Play Pass | $9.99 | one-time |
| 225k Coins | $14.99 | one-time |
| 750k Coins | $29.99 | one-time |
| 2.5m Coins | $59.99 | one-time |


## Frequently asked questions

### Is Deck 21 free?

Deck 21 is free to download, with no in-app purchases.

### Is SimpleJack 21 free?

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

### Do Deck 21 or SimpleJack 21 have ads?

SimpleJack 21 shows ads; Deck 21 does not.

### Which is updated more often, Deck 21 or SimpleJack 21?

Deck 21 ships an update daily, and SimpleJack 21 fortnightly. Most recently, Deck 21 was updated on October 28, 2026 and SimpleJack 21 on October 28, 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.*