# Black Jack!! vs CardStack

The clearest difference is iOS requirement: Black Jack!! at 13.3 against CardStack's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Black Jack!! ships an update every 3 weeks, CardStack every 2 weeks. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Black Jack!! | CardStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cardstack-high-low-challenge/id6743040348/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Ad-supported |
| Size | 29 MB | 4 MB |
| Requires iOS | **13.3** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) | [Mizuki Hoshida](https://appshunter.io/developer/1797942917) |

## What reviewers say

### Black Jack!!

[App page](https://appshunter.io/ios/app/black-jack/id6474468571)

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

**In-app purchases:** none


### CardStack

[App page](https://appshunter.io/ios/app/cardstack-high-low-challenge/id6743040348)

An addictive card game where players predict if the next card will be higher or lower. Enjoy quick gaming sessions alone or challenge friends, test your luck, and aim for the highest score with beautiful animations and intuitive gameplay.

**Highlights:** Higher or lower card prediction, Solo and multiplayer modes, Game history and stats tracking, Customizable sound and animations, Beautiful card designs, Streak challenges

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

**In-app purchases:** none


## Frequently asked questions

### Is Black Jack!! free?

Black Jack!! is free to download, with no in-app purchases.

### Is CardStack free?

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

### Do Black Jack!! or CardStack have ads?

Both Black Jack!! and CardStack show ads.

### Which is updated more often, Black Jack!! or CardStack?

Black Jack!! ships an update every 3 weeks, and CardStack every 2 weeks. Most recently, Black Jack!! was updated on October 10, 2026 and CardStack on October 1, 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.*