# Stacky Boom! vs Hidden Chess

The clearest difference is in-app purchases: Stacky Boom! at none against Hidden Chess's 7. Stacky Boom! also leads on update cadence (daily vs monthly). Hidden Chess's advantage is iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Hidden Chess sells 7 one-off in-app purchases. Stacky Boom! asks for nothing beyond the download.

Stacky Boom! ships an update daily, Hidden Chess monthly. The most recent releases landed on October 12, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Stacky Boom! | Hidden Chess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stacky-boom/id6778777057/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Monthly |
| Monetization | Ad-supported | — |
| Size | 127 MB | 207 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | +17 |
| Developer | [Two4Tea](https://appshunter.io/developer/1437128903) | [Apollo Software Pte Ltd](https://appshunter.io/developer/1171694801) |

## What reviewers say

### Stacky Boom!

[App page](https://appshunter.io/ios/app/stacky-boom/id6778777057)

A calming puzzle game where you collect stacks and shoot targets to complete levels. It offers a satisfying brain teaser with simple rules and unlimited play. Enjoy pure logic fun and a meditative experience anytime, anywhere.

**Highlights:** Collect stacks, Shoot targets, Train your brain, Play offline, Unlimited play, Minimalist design

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

**In-app purchases:** none


### Hidden Chess

[App page](https://appshunter.io/ios/app/hidden-chess-shadow-chess/id6780352762)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin1 | $1.99 | one-time |
| Coin2 | $2.99 | one-time |
| Coin3 | $4.99 | one-time |
| Coin4 | $7.99 | one-time |
| Coin5 | $11.99 | one-time |
| Coin6 | $19.99 | one-time |
| Coin7 | $29.99 | one-time |


## Frequently asked questions

### Is Stacky Boom! free?

Stacky Boom! is free to download, with no in-app purchases.

### Is Hidden Chess free?

Hidden Chess is free to download, with in-app purchases available.

### Do Stacky Boom! or Hidden Chess have ads?

Both Stacky Boom! and Hidden Chess show ads.

### Which is updated more often, Stacky Boom! or Hidden Chess?

Stacky Boom! ships an update daily, and Hidden Chess monthly. Most recently, Stacky Boom! was updated on October 12, 2026 and Hidden Chess 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.*