# PTattoo vs 测音高

The clearest difference is in-app purchases: PTattoo at none against 测音高's 1. 测音高's advantage is update cadence (every 9 days vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 测音高 sells 1 in-app purchase, starting at $1.99 per 7 days. PTattoo asks for nothing beyond the download.

PTattoo ships an update every 5 months, 测音高 every 9 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | PTattoo | 测音高 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 9 days** |
| Size | 72 MB | 24 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [震 张](https://appshunter.io/developer/1226840578) | [秋平 李](https://appshunter.io/developer/1636667539) |

## What reviewers say

### PTattoo

[App page](https://appshunter.io/ios/app/ptattoo/id6648774841)

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

**In-app purchases:** none


### 测音高

[App page](https://appshunter.io/ios/app/id6755591010)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 测音高尊贵会员 | $1.99 | per 7 days |


## Frequently asked questions

### Is PTattoo free?

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

### Is 测音高 free?

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

### Do PTattoo or 测音高 have ads?

Neither PTattoo nor 测音高 shows ads.

### Which is updated more often, PTattoo or 测音高?

PTattoo ships an update every 5 months, and 测音高 every 9 days. Most recently, PTattoo was updated on November 4, 2026 and 测音高 on November 5, 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.*