Fine Tuna
Temperament-aware pro tuner
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Compare temperaments by ear and eye. Explore fifths, intervals, chords, key quality, and pitch offsets—then tune with the system you choose.
Fine Tuna is a precision tuner for professional musicians—especially early music specialists who need to understand exactly what a temperament is doing.
Created by professional harpsichordist and conductor Jeffrey Grossman, Fine Tuna lets you compare temperaments visually, numerically, and by ear. Start tuning instantly in Simple mode, with advanced tools always just a tap away.
TEMPERAMENTS AND TEMPERAMENT EXPLORER
- Set A anywhere from 300–600 Hz in 0.1 Hz increments—or play the A you need
- Explore 40 built-in temperaments, with historical background and facsimile sources
- Create custom temperaments using cents offsets or fractions of a syntonic or Pythagorean comma, automatically synced to your other devices
- Transpose temperaments up or down
- Support split enharmonics such as C#/Db and D#/Eb, including listening and playing
- Convert instantly between cents offsets and the circle of fifths
- Use the Temperament Explorer to see and hear a temperament’s circle of fifths, interval sizes, major and minor triads, key character, modulation paths, and harmonic progressions
- Compare two temperaments directly in the Explorer
- Save temperament and pitch presets for quick recall
ADVANCED KEYBOARD
- Choose from 13 sounds, including simple waveforms, synthesized instruments, and sampled flute, clarinet, trumpet, and organ
- Customize key size, keyboard appearance, and starting pitch
- Flip instantly between two temperaments with Temperament Compare
- Use Just Intonation mode to play a chord, lock a reference note, and tune the other notes pure against it
- Explore four different tunings of the dominant seventh chord
- Use the resizable inline keyboard on the tuning screen or switch to the full-screen Keyboard tab
CUSTOMIZABLE TUNER VIEWS
- Choose from Frame, Bar, three types of strobe, additional octave and harmonic displays, and more
- Edit built-in views or create custom copies with your own colors, frame shapes, and strobe settings
- See tuning hints in your selected temperament, such as:
“Bb → Eb: pure” or “Bb → D: 13.7c wide, 8.7 beats/sec”
- See octave strobe tuners
PASSAGE REVIEW AND STRETCH TUNING
- Record up to 60 seconds of music and review your performance by pitch
- Play back individual notes—for example, every F you played—to hear how consistent they were
- Play a scale to evaluate your instrument and adjust A4 or the temperament to find the best fit
- Sample your own keyboard instrument to create a custom stretch-tuning profile across the register, synced to your other devices
LOCKED NOTE AND AUDIO OPTIONS
- Lock the tuner to one pitch and ignore other input
- Move manually or automatically by semitone
- Add an optional drone that follows the locked pitch
- Use the built-in microphone while listening through headphones, or connect an external microphone
Fine Tuna turns tuning into something you can see, hear, compare, and investigate—not just a name in a menu.
The developer, Jeffrey Grossman, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jeffrey Grossman
- Size
- 77 MB
- Category
- Music
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Fine Tuna Pro Annual $9.99
- Fine Tuna Pro Monthly $1.99
- Copyright
- © 2026 Jeffrey Grossman