# Block 9 vs Block Stack

The clearest difference is ads: Block 9 at none against Block Stack's shown. Block Stack's advantage is update cadence (every 10 days vs every 2 months) and ratings volume (3 vs 1). On price, rating, review sentiment and in-app purchases there is nothing between them.

Both are free to download. Block 9 sells 3 one-off in-app purchases and Block Stack sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Block 9 against 5.0 for Block Stack. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Block 9 ships an update every 2 months, Block Stack every 10 days. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Block 9 | Block Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/block-9/id1496560987/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/block-stack-game/id6757419337/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 49 MB | 152 MB |
| Requires iOS | 27.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jon Grant](https://appshunter.io/developer/400451021) | [SolarPop](https://appshunter.io/developer/1686353147) |

## What reviewers say

### Block 9

[App page](https://appshunter.io/ios/app/block-9/id1496560987)

Place randomly shaped blocks onto a 9x9 grid to score points by forming squares or lines. This simple puzzle game offers a straightforward yet engaging gameplay experience.

**Highlights:** 9x9 grid gameplay, Randomly shaped blocks, Score by forming lines, Score by forming squares, Simple puzzle mechanics

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enable Themes | $0.99 | one-time |
| Undo x5 | $0.99 | one-time |
| Renew x5 | $0.99 | one-time |


### Block Stack

[App page](https://appshunter.io/ios/app/block-stack-game/id6757419337)

Tap at the right moment to stack moving blocks as high as possible in this simple yet challenging game. Enjoy smooth, relaxing gameplay with clean visuals and endless replay value, perfect for quick sessions or unwinding.

**Highlights:** One-tap block stacking, Clean, colorful visuals, Offline play, Smooth performance, Endless replay value

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is Block 9 free?

Block 9 is free to download, with in-app purchases available.

### Is Block Stack free?

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

### Which has better reviews, Block 9 or Block Stack?

Block 9 and Block Stack are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Block 9 or Block Stack have ads?

Block Stack shows ads; Block 9 does not.

### Which is updated more often, Block 9 or Block Stack?

Block 9 ships an update every 2 months, and Block Stack every 10 days. Most recently, Block 9 was updated on October 11, 2026 and Block Stack on October 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*