# 节拍器 vs 换机助手

The clearest difference is in-app purchases: 换机助手 at none against 节拍器's 1. 节拍器's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 节拍器 sells 1 in-app purchase, starting at $4.99 per 7 days. 换机助手 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 7, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 节拍器 | 换机助手 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 5 MB | 11 MB |
| Requires iOS | **14.3** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [欢 张](https://appshunter.io/developer/1869023796) | [宏立 刘](https://appshunter.io/developer/6774631738) |

## What reviewers say

### 节拍器

[App page](https://appshunter.io/ios/app/id6758487653)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 限时特惠 | $4.99 | per 7 days |


### 换机助手

[App page](https://appshunter.io/ios/app/app/id6797737676)

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

**In-app purchases:** none


## Frequently asked questions

### Is 节拍器 free?

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

### Is 换机助手 free?

换机助手 is free to download, with no in-app purchases.

### Do 节拍器 or 换机助手 have ads?

换机助手 shows ads; 节拍器 does not.

### Which is updated more often, 节拍器 or 换机助手?

节拍器 ships an update every 3 weeks, and 换机助手 every 3 weeks. Most recently, 节拍器 was updated on October 7, 2026 and 换机助手 on October 18, 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.*