# 音频变调 vs NSguard

The clearest difference is ads: NSguard at none against 音频变调's shown. NSguard also leads on update cadence (weekly vs every 3 months). 音频变调's advantage is iOS requirement (15.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

音频变调 ships an update every 3 months, NSguard weekly. The most recent releases landed on September 30, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 音频变调 | NSguard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6463199263/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 92 MB | 3 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [鹏 张](https://appshunter.io/developer/1704123284) | [增阳 赵](https://appshunter.io/developer/1895564529) |

## 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


### NSguard

[App page](https://appshunter.io/ios/app/nsguard/id6779931459)

**In-app purchases:** none


## Frequently asked questions

### Is 音频变调 free?

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

### Is NSguard free?

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

### Do 音频变调 or NSguard have ads?

音频变调 shows ads; NSguard does not.

### Which is updated more often, 音频变调 or NSguard?

音频变调 ships an update every 3 months, and NSguard weekly. Most recently, 音频变调 was updated on September 30, 2026 and NSguard on September 17, 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.*