# テトリ椅子 vs Harena

The clearest difference is rating: テトリ椅子 at 4.0 against Harena's 3.0. テトリ椅子 also leads on ads (none vs shown) and iOS requirement (6.0 vs 15.0). Harena's advantage is in-app purchases (none vs 3). On price, ratings volume and device support there is nothing between them.

Both are free to download. テトリ椅子 sells 3 one-off in-app purchases. Harena asks for nothing beyond the download.

テトリ椅子 holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

## The numbers

| Metric | テトリ椅子 | Harena |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/id1039595492/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/harena/id6804989976/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Monetization | — | Ad-supported |
| Size | 13 MB | 84 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Qooga Create Limited company](https://appshunter.io/developer/539446715) | [SATOSHI MAEDA](https://appshunter.io/developer/6781611869) |

## What reviewers say

### テトリ椅子

[App page](https://appshunter.io/ios/app/id1039595492)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ポイント500点 | $0.99 | one-time |
| ポイント1200点 | $1.99 | one-time |
| ポイント2000点 | $2.99 | one-time |


### Harena

[App page](https://appshunter.io/ios/app/harena/id6804989976)

Explore a dynamic sandbox with over 165 materials, including sand, water, lava, and creatures. Simulate complex reactions, manage heat and electricity, and even control a character in a vast, offline world.

**Highlights:** 165+ materials with unique properties, Complex heat and reaction simulation, Electricity and magnetism mechanics, Wind, pressure, and airflow simulation, Playable creatures and steerable character, Offline play with save slots, Multiple simulation views

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

**In-app purchases:** none


## Frequently asked questions

### Is テトリ椅子 free?

テトリ椅子 is free to download, with in-app purchases available.

### Is Harena free?

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

### Which has better reviews, テトリ椅子 or Harena?

テトリ椅子 is rated higher. テトリ椅子 averages 4.0 out of 5 from 1 ratings, while Harena averages 3.0 from 1 ratings.

### Do テトリ椅子 or Harena have ads?

Harena shows ads; テトリ椅子 does not.

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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.*