# Stack Chairs vs BLOCK45

The clearest difference is in-app purchases: Stack Chairs at none against BLOCK45's 10. Stack Chairs also leads on iOS requirement (8.0 vs 15.0). BLOCK45's advantage is update cadence (daily vs every 16 months). On price, ads and device support there is nothing between them.

Both are free to download. BLOCK45 sells 10 one-off in-app purchases. Stack Chairs asks for nothing beyond the download.

Stack Chairs ships an update every 16 months, BLOCK45 daily. The most recent releases landed on November 2, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Stack Chairs | BLOCK45 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/stack-chairs/id1247429003/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 16 months | **Daily** |
| Monetization | Ad-supported | — |
| Size | 45 MB | 28 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chuanming Chang](https://appshunter.io/developer/1001571025) | [EUNTAEK LEE](https://appshunter.io/developer/6787142397) |

## What reviewers say

### Stack Chairs

[App page](https://appshunter.io/ios/app/stack-chairs/id1247429003)

A simple yet challenging game where players aim to stack chairs as high as possible. It offers numerous achievements to unlock, testing players' skill and persistence.

**Highlights:** Chair stacking gameplay, High score challenge, Multiple achievements, Easy to learn, Difficult to master

**Features:** macOS Compatibility

**In-app purchases:** none


### BLOCK45

[App page](https://appshunter.io/ios/app/block45-gravity-block-puzzle/id6787142395)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Key Refill | $0.49 | one-time |
| Basic Blocks x10 | $0.49 | one-time |
| Premium Blocks x10 | $0.99 | one-time |
| Day Pass | $1.99 | one-time |
| Basic Blocks x50 | $1.99 | one-time |
| Basic Blocks x100 | $3.49 | one-time |
| Premium Blocks x50 | $3.99 | one-time |
| Premium Blocks x100 | $6.99 | one-time |
| Emblem Canvas +1 | $9.99 | one-time |
| Emblem Canvas +2 | $15.99 | one-time |


## Frequently asked questions

### Is Stack Chairs free?

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

### Is BLOCK45 free?

BLOCK45 is free to download, with in-app purchases available.

### Do Stack Chairs or BLOCK45 have ads?

Both Stack Chairs and BLOCK45 show ads.

### Which is updated more often, Stack Chairs or BLOCK45?

Stack Chairs ships an update every 16 months, and BLOCK45 daily. Most recently, Stack Chairs was updated on November 2, 2026 and BLOCK45 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.*