# SHIFT — Tempo & Key Changer — Change tempo, pitch & key

> Change tempo, pitch & key (iPhone/iPad app by Echelon Audio.)

- Source: https://appshunter.io/ios/app/shift-tempo-and-key-changer/id6818734582 (this page in markdown: same URL + `.md`)
- Developer: [Echelon Audio](https://appshunter.io/developer/6806892357)
- Category: Music, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 1 MB
- Languages: American English
- Released: 2026-10-21
- Data updated: 2026-10-26

## What is SHIFT?

SHIFT changes the tempo, speed, pitch and key of any song, live, right on your iPhone. Open a track, move it to the BPM or key you need, compare it with the original, and export the result.

TEMPO
• Set the exact BPM: type it, tap it, or nudge by 0.1 or 1 BPM
• Keep key on to change the tempo without touching the pitch
• Half and double time, from ½× to 2× the original
• See the new length before you export

PITCH AND KEY
• Shift by semitones and fine-tune by cents
• Tap a target key and SHIFT works out the move. Minor stays minor
• Preserve formants to keep vocals natural, or shift formants on purpose
• Correct a track recorded slightly sharp or flat to A440

SPEED
• Turn Keep key off for varispeed: tempo and pitch move together, the way slowed and sped-up edits sound

ADVANCED XY
• Drag one pad to move tempo and pitch at once
• Lock either axis, snap pitch to semitones, and pick Fine, Normal or Wide response

PARTS AND LOOPS
• Select any part of the song on the detailed waveform and loop it
• Give a part its own tempo and key while the rest of the song stays as it is

KNOW YOUR TRACK
• SHIFT detects the original tempo and key, with Camelot numbers for DJs
• Correct either one by tapping along or picking it yourself

COMPARE AND EXPORT
• Switch between Original and Processed at the same spot, any time
• Choose Draft, Balanced or High processing quality
• Export WAV 24-bit, WAV 16-bit (dithered), AAC 256 kbps or Apple Lossless
• Export the whole track or just your selection, saved to Files and ready to share
• Add artwork and edit the song name and artist

Opens WAV, AIFF, MP3, AAC/M4A, Apple Lossless and FLAC. Everything runs on your iPhone, and nothing you open is uploaded.

FREE AND PRO
Try every control on any 30 seconds of a song, and on the full built-in demo. SHIFT Pro is a one-time purchase that opens whole songs of any length and unlocks export. No subscription.

Songs from Apple Music and other streaming services are protected and can't be opened.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| SHIFT Pro | $7.99 | one-time |


## Is SHIFT safe?

Not enough ratings yet to assess SHIFT.

## Is SHIFT legit?

SHIFT — Tempo & Key Changer appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for SHIFT is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-22

No release notes.

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## More apps by Echelon Audio

- [SCOUT — Key & BPM](https://appshunter.io/ios/app/scout-key-and-bpm/id6806891995)
- [LUMEN — Loudness Meter](https://appshunter.io/ios/app/lumen-loudness-meter/id6806892318)
- [Echelon Remote](https://appshunter.io/ios/app/echelon-remote/id6815051773)

All apps by Echelon Audio: https://appshunter.io/developer/6806892357

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-26.*