# Pendulum Lab vs BUTURAKU

The clearest difference is price: BUTURAKU at Free against Pendulum Lab's $0.99. BUTURAKU also leads on in-app purchases (none vs 1) and update cadence (weekly vs every 5 weeks). Pendulum Lab's advantage is ads (none vs shown). On device support there is nothing between them.

BUTURAKU is free to download; Pendulum Lab costs $0.99 up front. Pendulum Lab sells 1 one-off in-app purchase. BUTURAKU asks for nothing beyond the download.

Pendulum Lab ships an update every 5 weeks, BUTURAKU weekly. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Pendulum Lab | BUTURAKU |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Weekly** |
| Size | 4 MB | 24 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [hyeonsu jeong](https://appshunter.io/developer/1628268684) | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) |

## What reviewers say

### Pendulum Lab

[App page](https://appshunter.io/ios/app/pendulum-lab/id6661026555)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Triple Pendulum Unlock | $0.99 | one-time |


### BUTURAKU

[App page](https://appshunter.io/ios/app/buturaku/id6759213255)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pendulum Lab free?

Pendulum Lab costs $0.99, and also offers in-app purchases.

### Is BUTURAKU free?

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

### Do Pendulum Lab or BUTURAKU have ads?

BUTURAKU shows ads; Pendulum Lab does not.

### Which is updated more often, Pendulum Lab or BUTURAKU?

Pendulum Lab ships an update every 5 weeks, and BUTURAKU weekly. Most recently, Pendulum Lab was updated on September 17, 2026 and BUTURAKU on September 23, 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.*