432 Hz Guitar Tuner
Tuner, Metronome & Capo
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Play in tune. Play in time.
Now with a built-in metronome, capo support, and presets for guitar, bass, and ukulele - all free, no account required.
Tune with precision. Choose your frequency.
432 Hz Tuner is a professional-grade chromatic tuner for guitarists and musicians who want accurate tuning with support for alternative tuning standards - now with a built-in metronome and capo support.
Tune your instrument to 432 Hz, 440 Hz, or 430.54 Hz scientific pitch, with real-time visual feedback and cent-level precision. Whether you're exploring alternative tunings or just need a reliable everyday tuner, this app delivers accuracy, clarity, and simplicity.
Core Features
- Chromatic tuner for guitar, bass, ukulele, and any instrument
- Three tuning standards: 440 Hz – modern industry standard, 432 Hz (Verdi tuning) – popular alternative tuning, 430.54 Hz scientific pitch - mathematically derived system with middle C at 256 Hz
- Guitar-first design with automatic string detection (E A D G B E)
- Capo support - select your capo fret and string names update instantly
- Built-in metronome with adjustable BPM (40–240), tap tempo, and customisable beats per bar
- High-precision pitch detection (±1 cent accuracy)
- Fast, low-latency response for real-time tuning
- Works completely offline
- Dark mode support
Designed for Musicians
The tuner works chromatically by design, meaning it can detect and tune any note you play. Instrument presets for guitar, bass, and ukulele provide a clearer, more intuitive interface - making tuning faster and easier without sacrificing flexibility. The metronome runs independently so you can keep time without leaving the app.
Learn About Tuning Standards
Includes a built-in Learn section that explains:
- What 432 Hz tuning is and why musicians use it
- The history of Verdi tuning
- What 430.54 Hz scientific pitch means and how it differs
- How modern 440 Hz became the standard
- How to use the tuner effectively
Who This App Is For
- Guitarists exploring 432 Hz or alternative tunings
- Musicians who want a reliable chromatic tuner with a built-in metronome
- Players who use a capo and need accurate transposed string detection
- Anyone who wants a clean, accurate, free tuner with no distractions
Free & Simple
No accounts
No internet required
No unnecessary permissions
Free to use
Download 432 Hz Tuner and tune your instrument your way - accurately, clearly, and confidently.
Metronome - built-in click track with adjustable BPM (40–240), tap tempo, and customisable beats per bar
Capo support - select your capo fret and string names update instantly across all instruments
Bass and ukulele - new instrument presets with automatic string detection
Bug fixes and performance improvements
The developer, Qi Machine LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Qi Machine LLC
- Size
- 8.3 MB
- Category
- Music
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Remove Ads $2.99
- Copyright
- © 2026 Qi Machine LLC