# 机器人宝典 vs Audio Converter · MP3 Editor

The clearest difference is in-app purchases: 机器人宝典 at none against Audio Converter · MP3 Editor's 3. 机器人宝典 also leads on iOS requirement (13.0 vs 15.6). Audio Converter · MP3 Editor's advantage is ads (none vs shown) and update cadence (weekly vs every 5 weeks). On price and device support there is nothing between them.

Both are free to download. Audio Converter · MP3 Editor sells 3 in-app purchases, starting at $2.99 per 7 days. 机器人宝典 asks for nothing beyond the download.

机器人宝典 ships an update every 5 weeks, Audio Converter · MP3 Editor weekly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 机器人宝典 | Audio Converter · MP3 Editor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Weekly** |
| Size | 161 MB | 31 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Suzhou Yujun Network Technology Co., Ltd](https://appshunter.io/developer/1813298723) | [百利 苏](https://appshunter.io/developer/1729336138) |

## What reviewers say

### 机器人宝典

[App page](https://appshunter.io/ios/app/id6758929505)

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

**In-app purchases:** none


### Audio Converter · MP3 Editor

[App page](https://appshunter.io/ios/app/audio-converter-mp3-editor/id6803776216)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Membership | $2.99 | per 7 days |
| Annual Plan | $9.99 | per year |
| Lifetime Access | $14.99 | one-time |


## Frequently asked questions

### Is 机器人宝典 free?

机器人宝典 is free to download, with no in-app purchases.

### Is Audio Converter · MP3 Editor free?

Audio Converter · MP3 Editor is free to download, with in-app purchases available.

### Do 机器人宝典 or Audio Converter · MP3 Editor have ads?

机器人宝典 shows ads; Audio Converter · MP3 Editor does not.

### Which is updated more often, 机器人宝典 or Audio Converter · MP3 Editor?

机器人宝典 ships an update every 5 weeks, and Audio Converter · MP3 Editor weekly. Most recently, 机器人宝典 was updated on October 28, 2026 and Audio Converter · MP3 Editor 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.*