# TUNE — 精密音具 — Tuner, Metronome & Ref Tone

> Tuner, Metronome & Ref Tone (iPhone/iPad app by Hirosuke Yonekubo.)

- Source: https://appshunter.io/ios/app/tune/id6761765713 (this page in markdown: same URL + `.md`)
- Developer: [Hirosuke Yonekubo](https://appshunter.io/developer/1625472869)
- Category: Music, Utilities
- Price: $2.99
- Age rating: 4+
- Requires: iOS 13.0 · 20 MB
- Languages: English
- Released: 2026-04-10
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/tune/id6761765713/reviews.md

## What is TUNE?

Precision musical instrument.

TUNE is a chromatic tuner, metronome, and reference tone generator — designed with the rigor of a precision instrument. No ads. No subscription. One-time purchase.

— CHROMATIC TUNER
High-accuracy pitch detection. Large note display. ±50 cent offset bar. Concert pitch adjustment (A4 = 430–450 Hz). Multiple visualization modes. Haptic feedback when in tune.

— METRONOME
20–300 BPM. Accent pattern editor. 4-level swing. Tap tempo. Multiple visualization modes. Haptic click on every beat — practice without disturbing others.

— RAMP
Gradual tempo change for structured speed training. Set start and end BPM, step increment, and hold duration. The metronome adjusts automatically. BPM knob stays live with directional range arc.

— REF TONE
Reference tone output for tuning by ear. Any note from C2 to C6. Three waveforms: SINE, STRING, ORGAN. Pair with the tuner for visual + auditory precision.

— BUILT TO LAST
Industrial interface. No rounded corners. Monospaced numerals. Dark mode. Landscape support for music stands. Every detail considered. Nothing unnecessary added.


## Version history (last 2 releases)

### 1.1.0 — 2026-04-14

v1.1.0 — RAMP.

METRONOME: RAMP mode. Automatic tempo progression with MIN/MAX BPM, STEP increment, STAY duration, and DIR control. Tempo holds at target. BPM knob stays synced with directional range arc. Settings persist across sessions.

### 1.0.0 — 2026-04-11

No release notes.

## More apps by Hirosuke Yonekubo

- [Kotoba Erabi](https://appshunter.io/ios/app/kotoba-erabi/id1642048649)
- [Sekigae-kun: Seating Chart](https://appshunter.io/ios/app/sekigae/id6759973394)
- [GAUGE - Level Ruler Protractor](https://appshunter.io/ios/app/gauge/id6761431511)
- [Shiori — Reading Guide](https://appshunter.io/ios/app/shiori/id6764091272)

All apps by Hirosuke Yonekubo: https://appshunter.io/developer/1625472869

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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 2026-05-16.*