Supported Features
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VoiceOver
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Voice Control
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Dark Interface
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Reduced Motion
Unlimited Tuner
Tune, keep time, train the ear
$2.99
A chromatic tuner built on a real pitch detection engine: the YIN algorithm from the research literature, implemented from scratch to hear the fundamental frequency rather than a harmonic. When there is a note, the needle is accurate to a fraction of a cent. When there is not, the display stays blank instead of guessing.
A DETECTOR YOU CAN TRUST
The full musical range, from the bottom of the piano (A0, 27.5 Hz) to the top (C8, 4186 Hz), including bass drop tunings, ukulele, violin, voice, and whistling.
Locked to the fundamental, so harmonic-rich tones like saxophone, strings, and synths read as the note you are actually playing, not the octave above or below.
Silence and room noise are filtered out, so a reading only appears when there is a real pitch to report.
Works with built-in microphones and professional audio interfaces up to 192 kHz.
A NEEDLE THAT HOLDS STILL
Small wobble is smoothed for readability while real note changes register instantly, with no lag and no jitter.
Notes on the boundary between two names do not flicker back and forth.
Plucked notes hold their reading long enough to actually read.
TUNE THE INSTRUMENT IN FRONT OF YOU
Guitar, bass, ukulele, violin, viola, cello, mandolin, and banjo, each with the tunings players actually use, or stay chromatic and it reads anything.
Alternate tunings built in: guitar Drop D, half and full step down, DADGAD, open G, D, and E, bass Drop D and five-string, and ukulele low G and baritone.
In an instrument tuning it snaps to the nearest string and tells you which one.
Capo and transposing instruments: B flat and E flat instruments read in their written pitch once you set the transposition. Only the displayed name moves; the measured pitch is exactly what the microphone heard.
Set the A4 reference anywhere from 415 Hz to 466 Hz, or return to 440 Hz with one tap.
HISTORICAL AND JUST TEMPERAMENTS
Equal, Just Intonation, Pythagorean, Quarter-comma Meantone, Werckmeister III, and Kirnberger III, each anchored to a tonic you choose and computed from exact ratios.
Leave it on Equal for the plain chromatic tuner you already trust.
PRACTICE WITH A METRONOME AND DRONE
Clicks are scheduled in the audio buffer itself rather than by a wall-clock timer, so the metronome does not drift or stutter. 30 to 300 BPM, 1 to 12 beats per bar with an accented downbeat, and quarter, eighth, triplet, or sixteenth subdivisions. Tap the tempo in if you do not know the BPM.
Hold a steady drone at any note and octave to practise intonation the way string and wind players train their ear. One tap sets the drone to the note you are holding, and you control the volume to blend it under your instrument.
CHOOSE HOW YOU SEE PITCH
The classic strobe readout, concentric bands that appear to stand still when in tune, for dialling a string in precisely. Switch between needle and strobe at any time.
A colour-coded cents display, a scrolling pitch history ribbon on iPhone and iPad, and a live harmonic spectrum view.
Haptic feedback on iPhone when you centre a note, full keyboard control on Mac, and VoiceOver throughout.
ONE PURCHASE, EVERY DEVICE
One purchase covers Mac, iPhone, and iPad. Every feature described here is in the app from the first launch: nothing is a paid upgrade and nothing is behind a subscription.
No account, no in-app purchases, no ads, no analytics, and no tracking. Audio never leaves the microphone buffer. Nothing is recorded, nothing is stored, and nothing is sent anywhere.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Some interface updates inspired by macOS.
The developer, The Virtually Unlimited Corp, 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.
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- The Virtually Unlimited Corp
- Size
- 2.8 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
- Age Rating
4+
- 4+
- Copyright
- © 2026 The Virtually Unlimited Corp
