# RT Analyzer — Instrument Intonation Analyzer

> Instrument Intonation Analyzer (iPhone/iPad app by 航 徐.)

- Source: https://appshunter.io/ios/app/rt-analyzer/id6809084222 (this page in markdown: same URL + `.md`)
- Developer: [航 徐](https://appshunter.io/developer/6808742999)
- Category: Music, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: Chinese (Simplified, China)
- Released: 2026-09-10
- Data updated: 2026-10-09
- User reviews in markdown: https://appshunter.io/ios/app/rt-analyzer/id6809084222/reviews.md

## What is RT Analyzer?

RT Analyzer is a long-term intonation analysis tool for wind instruments, strings, and piano. It accumulates measurements for every note so players can review intonation across the full range of an instrument.

Key features:
• Dedicated detection modes for wind, string, and piano instruments
• Switchable Classic and Enhanced detector groups for comparison
• Full 88-key range in Piano mode
• View 3, 4, or 5 octaves at once with continuous horizontal navigation
• Equal temperament and just intonation, with key and harmony filtering
• Adjustable Good, Acceptable, and Poor cent thresholds
• LED-style input level meter
• Long-press or double-tap a note to inspect the fundamental and 2nd–4th harmonics, including frequency, level, and cent offset
• Automatic measurement history with rename, delete, and full-range image sharing
• Interface languages include English, Japanese, Simplified Chinese, Traditional Chinese, and more

Audio is analyzed in real time on the device. No account is required.


## Version history (last 3 releases)

### 0.7.5 — 2026-09-25

Added Classic and Enhanced detector groups with optimized harmonic validation and candidate selection for wind, string, and piano modes. Also added quick instrument-mode switching on the main screen and improved history labels, dialogs, and reliability.

### 0.7.4 — 2026-09-10

优化了一些界面问题

### 0.7.3 — 2026-09-10

No release notes.

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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 2026-10-09.*