# SonicShift: Music Tempo & Key — Music Key & Tempo Control

> Music Key & Tempo Control (iPhone/iPad app by Waffle, LCC.)

- Source: https://appshunter.io/ios/app/sonicshift-music-tempo-and-key/id6760638491 (this page in markdown: same URL + `.md`)
- Developer: [Waffle, LCC](https://appshunter.io/developer/1777946699)
- Category: Music
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 45 MB
- Languages: American English
- Released: 2026-03-21
- Data updated: 2026-08-14
- User reviews in markdown: https://appshunter.io/ios/app/sonicshift-music-tempo-and-key/id6760638491/reviews.md

## What is SonicShift?

Change the key and speed of any song — independently and in real time.

SonicShift lets you adjust pitch and playback speed of your music files with precision. Whether you're a musician learning a solo in a different key, warming up for karaoke, or slowing down audio for language study — SonicShift gives you full control.

KEY FEATURES

▸ Pitch Control: -12 to +12 semitones (full octave up or down) in 0.1 semitone steps
▸ Speed Control: 0.5x to 2.0x playback speed in 0.01x steps
▸ Independent Adjustment: Change pitch without affecting speed, and vice versa
▸ Real-Time Waveform: Live FFT frequency visualization while playing
▸ Quick Presets: 7 built-in presets for common use cases
▸ Haptic Feedback: Feel the controls respond as you dial in your sound
▸ Multiple Formats: MP3, WAV, M4A, FLAC, OGG supported
▸ Recent Files: Quick access to your last 20 opened files

PERFECT FOR

▸ Musicians — Practice songs in any key. Slow down fast passages. Learn guitar solos at half speed, then gradually increase tempo.
▸ Karaoke — Shift the key to match your vocal range. Presets included for common key changes (+3, -3 semitones).
▸ Language Learners — Slow down podcasts, audiobooks, or conversation recordings to catch every word.
▸ Drummers & Percussionists — Speed up or slow down tracks to practice timing at your own pace.
▸ Music Teachers — Demonstrate songs in different keys for students with different vocal ranges.

HOW IT WORKS

1. Open any audio file from your device
2. Adjust the pitch slider to change the key
3. Adjust the speed slider to change the tempo
4. Tap a preset for instant common adjustments
5. Hit play and practice

PRESETS INCLUDED

• Half Step Down / Up (-1 / +1 semitone)
• Whole Step Down (-2 semitones)
• Slow Practice (0.75x speed)
• Very Slow (0.5x speed)
• Karaoke -3 / +3 (±3 semitones)

SonicShift uses advanced audio processing with pitch correction, so changing the key doesn't make vocals sound chipmunk-like, and slowing down doesn't distort the audio.

COMING SOON (Premium)
• Ad-free experience
• Custom preset creation
• Audio export

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| プレミアム | $0.49 | per month |
| Premium | $1.99 | per month |



## Version history (last 3 releases)

### 1.0.3 — 2026-03-30

Bug fixed

### 1.0.2 — 2026-03-22

Initial release! Change the pitch and speed of any audio file independently with real-time waveform visualization.

### 1.0.0 — 2026-03-21

No release notes.

## More apps by Waffle, LCC

- [Boimero: Vocal Synth Studio](https://appshunter.io/ios/app/boimero-vocal-synth-studio/id6737790951)
- [シャッフル](https://appshunter.io/ios/app/id6749563418)
- [oboo \| 撮るだけで作れる単語帳アプリ](https://appshunter.io/ios/app/oboo/id6757411388)
- [ピクチャークラフト](https://appshunter.io/ios/app/id6758012751)
- [Focus Timer シンプルなタイマー](https://appshunter.io/ios/app/focus-timer/id6759997921)
- [NumRush](https://appshunter.io/ios/app/numrush/id6760337718)

All apps by Waffle, LCC: https://appshunter.io/developer/1777946699

## Related topics

[simito](https://appshunter.io/ios/topics/simito)

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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 2026-08-14.*