# PulseKey Tuner — Key Finder & Instrument Tuner

> Key Finder & Instrument Tuner (iPhone/iPad app by Erkan Erdogan.)

- Source: https://appshunter.io/ios/app/pulsekey-tuner/id6767927461 (this page in markdown: same URL + `.md`)
- Developer: [Erkan Erdogan](https://appshunter.io/developer/1896291556)
- Category: Music, Utilities
- Price: $9.99
- Age rating: 4+
- Requires: iOS 16.0 · 2 MB
- Languages: American English
- Released: 2026-05-12
- Data updated: 2026-10-03
- User reviews in markdown: https://appshunter.io/ios/app/pulsekey-tuner/id6767927461/reviews.md

## What is PulseKey Tuner?

Find the key. Tune the note. Keep the result.

PulseKey brings musical key analysis and instrument tuning together on your iPhone. Listen through the microphone or import an audio file. Audio analysis happens on your device, with no account required.

KEY ANALYSIS
Estimate major and minor keys from music around you or imported audio. See the relative key, Camelot and Open Key notation, scale notes, diatonic chords, and compatible mixing keys. A harmonic profile shows the pitch classes contributing to the result.

INSTRUMENT TUNER
See note, frequency, and cents while you tune. Use automatic targeting or lock a target note. Choose an instrument preset or create a custom tuning. Adjust the A4 reference from 415 to 466 Hz, play a reference tone, and follow the pitch trace.

AUDIO WORKSPACE
Import audio, analyze a selected region, and inspect estimated keys across six-second windows. Loop a section while working through it.

YOUR LOCAL LIBRARY
Save measurements with titles and notes. Keep custom tunings ready for your next session. Saved analyses retain results, not source audio.

EXPERIMENTAL DRUM TOOLS
Capture sustained drum resonances after a strike, hold a reference, and compare measurements across lugs. Drum readings are experimental and may reflect an overtone rather than the fundamental.

DESIGNED FOR FOCUSED LISTENING
No advertising, tracking, or account setup. Microphone audio and imported files are not uploaded by PulseKey.

Key and pitch readings are estimates. Results depend on the sound, microphone, room noise, and instrument. For tuning, play one clear note at a time. Complex music and inharmonic percussion can produce ambiguous results.


## Version history (last 2 releases)

### 1.1 — 2026-10-02

A fresh look, deeper key analysis, and more ways to tune.

- Redesigned Key and Tuner views with clearer readings and a new app icon.
- Live pitch trace, target-note locking, adjustable A4 calibration, and reference tones.
- Alternate and custom instrument tunings.
- Scale notes, diatonic chords, Camelot and Open Key notation, and compatible mixing keys.
- Audio-file region analysis, section looping, and a key timeline.
- A local library for saved measurements, titles, and notes.
- Experimental drum resonance and lug-comparison tools.

All audio analysis stays on your device. No account, advertising, or tracking.

### 1.0 — 2026-05-12

No release notes.

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## More apps by Erkan Erdogan

- [Voice Recorder - OnePress Rec](https://appshunter.io/ios/app/voice-recorder-onepress-rec/id6766458128)
- [OnePress Scan](https://appshunter.io/ios/app/onepress-scan/id6766640428)
- [Receipt Scanner - OnePress](https://appshunter.io/ios/app/receipt-scanner-onepress/id6766829762)
- [OnePress Cards](https://appshunter.io/ios/app/onepress-cards/id6766830225)
- [OnePress Warranty](https://appshunter.io/ios/app/onepress-warranty/id6766830306)
- [OnePress Hours](https://appshunter.io/ios/app/onepress-hours/id6766830563)

All apps by Erkan Erdogan: https://appshunter.io/developer/1896291556

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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 2026-10-03.*