ChromTuner
- Android app
- Not listed
- Free plan
- Yes
- Runs on
- iOS, Mac, Web
Summary
ChromTuner is a tuning tool offered as a native macOS app, a separate iPhone app and a free browser tuner. The Mac app detects pitches from A0 to C8 using YIN and reports ±1 cent accuracy in real-world use. Players can choose an LED meter, a Peterson-style strobe, a vintage needle or a drifting sine-wave display. Its tuning options include 15 instrument presets, eight historical temperaments, an adjustable capo, a custom A4 reference and transposition by up to 11 semitones in either direction. A separate-window metronome covers 40–240 BPM, tap tempo and meters from 2/4 to 7/8. Audio input can come from the built-in microphone or macOS-recognized USB interfaces and Aggregate Devices through Core Audio, including interfaces from Focusrite, Universal Audio, MOTU and RME. The maker says the Mac app processes audio in memory without recording, transmitting or making outbound network connections. The Mac app costs 6.99 USD as a one-time purchase and requires macOS 14 Sonoma or later.
Who it is for
It suits musicians who want detailed tuning options on a Mac, including alternate temperaments, capo adjustment and transpose. The browser tuner or free iPhone app may suit those who need a simpler option.
What is good
- Four display styles, including strobe and vintage needle
- 15 instrument presets and eight historical temperaments
- Metronome includes tap tempo and multiple meters
- Audio input supports Core Audio interfaces
- Mac app processes audio in memory
What to know first
- Mac app requires macOS 14 Sonoma or later
- No iPad-native version of the iPhone app
- No intonation monitoring
- Room microphones may be unreliable in noisy settings
Verdict
ChromTuner offers a broad set of tuning controls and displays on Mac, alongside separate browser and iPhone options. Consider the platform requirements and the maker’s warning about noisy environments before relying on a room microphone.
ChromTuner plans and pricing
All plansCompared on musical tuner apps
- Free plan
- Yeschromtuner.com
- Strobe display
- Yeschromtuner.com
- Alternate tunings
- Yeschromtuner.com
- Custom reference pitch
- Yeschromtuner.com
- Intonation monitoring
- Nochromtuner.com
- Offline mode
- Yeschromtuner.com
- Available platforms
- desktopchromtuner.com
Facts
- Product
- Chromatic Tuner is a native macOS chromatic tuner, and the maker also offers a free browser tuner and a separate iPhone app.chromtuner.com · 28 Sept 2026
- Pitch detection
- The macOS tuner uses YIN pitch detection across A0 to C8 and reports ±1 cent accuracy in real-world use.chromtuner.com · 28 Sept 2026
- Displays
- The Mac app offers an LED meter, a Peterson-style strobe, a vintage needle, and a drifting sine-wave display.chromtuner.com · 28 Sept 2026
- Tuning options
- The Mac app lists 15 instrument presets, eight historical temperaments, adjustable capo, custom A4 reference, and ±11-semitone transpose.chromtuner.com · 28 Sept 2026
- Metronome
- The Mac app includes a separate-window metronome with 40–240 BPM, tap tempo, and meters from 2/4 to 7/8.chromtuner.com · 28 Sept 2026
- Audio inputs
- The Mac app supports the built-in microphone and macOS-recognized USB audio interfaces or Aggregate Devices through Core Audio.chromtuner.com · 28 Sept 2026
- Integrations
- The maker names Focusrite, Universal Audio, MOTU, and RME among the interfaces supported through Core Audio.chromtuner.com · 28 Sept 2026
- Offline and privacy
- The maker says the Mac app processes microphone audio in memory, makes no outbound network connections, and does not record or transmit audio.chromtuner.com · 28 Sept 2026
- Security
- The Mac app is described as sandboxed under macOS App Sandbox and Hardened Runtime, with a Privacy Manifest and no telemetry.chromtuner.com · 28 Sept 2026
- Support
- The Mac purchase includes direct email support from the developer, and the FAQ says replies usually arrive within a few hours.chromtuner.com · 28 Sept 2026
- Notable limit
- The maker says full-band rehearsals and noisy stages can make room-microphone tuning unreliable, recommending a wired pickup or audio-interface DI input.chromtuner.com · 28 Sept 2026
- iPhone and Apple Watch
- The iPhone app requires iOS 17 or later, and its included standalone Apple Watch app requires watchOS 11 or later.chromtuner.com · 28 Sept 2026
- iPad
- The maker says there is no iPad-native version of the iPhone app.chromtuner.com · 28 Sept 2026
- Company location
- The site identifies the product as made in Vienna and describes the maker as indie software.chromtuner.com · 28 Sept 2026
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Where it ranks on Everything Xiaomi
- Best Musical Tuner Apps in 2026#2 of 32
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Sources
- chromtuner.com· checked 28 Sept 2026
- chromtuner.com/ios· checked 28 Sept 2026
- chromtuner.com/tune· checked 28 Sept 2026