# Pitch Shift (Key Change) vs tc.audio

The clearest difference is in-app purchases: tc.audio at none against Pitch Shift (Key Change)'s 2. tc.audio also leads on review sentiment (77% vs 50%) and iOS requirement (9.3 vs 16.0). Pitch Shift (Key Change)'s advantage is ratings volume (85 vs 24). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Pitch Shift (Key Change) sells 2 one-off in-app purchases. tc.audio asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for Pitch Shift (Key Change) against 4.3 for tc.audio. Both are backed by a comparable volume of ratings — 85 and 24 respectively. Written reviews are what separate them: 50% of Pitch Shift (Key Change)'s written reviews are positive against 77% of tc.audio's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Pitch Shift (Key Change) | tc.audio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (85 ratings)](https://appshunter.io/ios/app/pitch-shift-key-change/id670120398/reviews)** | [4.3 (24 ratings)](https://appshunter.io/ios/app/tcaudio/id1221238676/reviews) |
| Number of ratings | **85** | 24 |
| Positive reviews | 50.0% of reviews | **76.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 5 MB | 9 MB |
| Requires iOS | 16.0 | **9.3** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Loop-Sessions.LLC.](https://appshunter.io/developer/414215366) | [YOHAN KIM](https://appshunter.io/developer/1062312301) |

## What reviewers say

### Pitch Shift (Key Change)

[App page](https://appshunter.io/ios/app/pitch-shift-key-change/id670120398)

This music player allows real-time pitch shifting and a 31-band equalizer. It supports AUv3 effects, loop playback, and exporting processed audio. Import audio files from other apps or your music library.

**Highlights:** Real-time pitch shifting, 31-band equalizer, AUv3 effects support, A-B loop playback, Center Cancel/Emphasis, Audio file export, Background playback

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 31 bands equalizer | $0.99 | one-time |
| Always remove banner ads. | $2.99 | one-time |


### tc.audio

[App page](https://appshunter.io/ios/app/tcaudio/id1221238676)

Adjust playback speed, pitch, and loop sections of audio files. Ideal for learning music or languages by allowing focused listening and repetition.

**Highlights:** Playback speed control, Repeat and loop playback, Pitch alteration (semitone transposition), Seek and playback navigation, Shuffle play

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

**In-app purchases:** none


## Frequently asked questions

### Is Pitch Shift (Key Change) free?

Pitch Shift (Key Change) is free to download, with in-app purchases available.

### Is tc.audio free?

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

### Which has better reviews, Pitch Shift (Key Change) or tc.audio?

Pitch Shift (Key Change) is rated higher. Pitch Shift (Key Change) averages 4.4 out of 5 from 85 ratings, while tc.audio averages 4.3 from 24 ratings.

### Do Pitch Shift (Key Change) or tc.audio have ads?

Both Pitch Shift (Key Change) and tc.audio show ads.

### Which is updated more often, Pitch Shift (Key Change) or tc.audio?

Pitch Shift (Key Change) ships an update every 2 months, and tc.audio every 2 months. Most recently, Pitch Shift (Key Change) was updated on November 1, 2026 and tc.audio on November 2, 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.*