# Block Harmonics vs Woodoo

The clearest difference is in-app purchases: Block Harmonics at none against Woodoo's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Woodoo sells 1 one-off in-app purchase. Block Harmonics asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 9 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Block Harmonics | Woodoo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 9 days | Every 9 days |
| Size | 31 MB | 130 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ikuya Terasaka](https://appshunter.io/developer/1163471139) | [Hersey Social Ltd](https://appshunter.io/developer/1736559066) |

## What reviewers say

### Block Harmonics

[App page](https://appshunter.io/ios/app/block-harmonics/id6752220613)

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

**In-app purchases:** none


### Woodoo

[App page](https://appshunter.io/ios/app/woodoo/id6783896054)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Block Harmonics free?

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

### Is Woodoo free?

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

### Do Block Harmonics or Woodoo have ads?

Both Block Harmonics and Woodoo show ads.

### Which is updated more often, Block Harmonics or Woodoo?

Block Harmonics ships an update every 9 days, and Woodoo every 9 days. Most recently, Block Harmonics was updated on October 24, 2026 and Woodoo on October 25, 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.*