# 音频变调 vs 墨气笔迹

The clearest difference is in-app purchases: 音频变调 at none against 墨气笔迹's 2. 音频变调 also leads on iOS requirement (15.0 vs 17.0). 墨气笔迹's advantage is ads (none vs shown) and update cadence (weekly vs every 3 months). On price and device support there is nothing between them.

Both are free to download. 墨气笔迹 sells 2 in-app purchases, starting at $1.99 per month. 音频变调 asks for nothing beyond the download.

音频变调 ships an update every 3 months, 墨气笔迹 weekly. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 音频变调 | 墨气笔迹 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6463199263/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 92 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [鹏 张](https://appshunter.io/developer/1704123284) | [燕洁 陈](https://appshunter.io/developer/1753636431) |

## What reviewers say

### 音频变调

[App page](https://appshunter.io/ios/app/id6463199263)

This tool allows users to quickly adjust the pitch of audio and video files on their mobile devices. It's ideal for singers, musicians, and content creators looking to modify vocal tracks, instrumentals, or sound effects for various creative projects.

**Highlights:** Audio pitch shifting, Video pitch shifting, Fine-tune pitch by semitones and cents, Real-time preview, Import from various sources, Export audio and video, Simple user interface

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

**In-app purchases:** none


### 墨气笔迹

[App page](https://appshunter.io/ios/app/id6804914626)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度订阅（1个月） | $1.99 | per month |
| 年度订阅（1年） | $7.99 | per year |


## Frequently asked questions

### Is 音频变调 free?

音频变调 is free to download, with no in-app purchases.

### Is 墨气笔迹 free?

墨气笔迹 is free to download, with in-app purchases available.

### Do 音频变调 or 墨气笔迹 have ads?

音频变调 shows ads; 墨气笔迹 does not.

### Which is updated more often, 音频变调 or 墨气笔迹?

音频变调 ships an update every 3 months, and 墨气笔迹 weekly. Most recently, 音频变调 was updated on October 15, 2026 and 墨气笔迹 on October 8, 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.*