What TuneHaven does

A straight description of every part of the app: the tuner, the courses, the practice tools, and the design rules the whole thing is built around.

TuneHaven is a tuner for 18 instruments and voice, with a set of courses and practice tools built around it. It works entirely offline, shows no ads, and has no account.

This page describes what is in it. What it costs is on the free and Pro page.

The tuner

18 instruments plus voice. Guitar, bass, double bass, ukulele, mandolin, banjo, tenor banjo, violin, viola, cello, charango, bouzouki, oud, cavaquinho, cuatro, balalaika, banjolele and lap steel. Every one of them ships with its real tunings rather than a guitar preset with the name changed, including the awkward cases: re-entrant ukulele and banjo, the 12-string guitar’s octave courses, the oud’s lone bass string. The full reference lists every pitch.

Standard, alternate and custom tunings. Guitar alone has nine. Where your tuning is not bundled, you can build it, and custom tunings are free.

Chromatic mode, which reads any pitch against the nearest of the twelve notes with no instrument assumed. Useful for instruments not in the list, for checking a fixed-pitch instrument, or for a tuning you are inventing.

Reference tones using real sampled instrument voices rather than sine beeps, for when you would rather match by ear than watch a needle.

A4 calibration and temperaments, so you can move off 440 Hz to match an orchestra, a period ensemble or a piano that will not move. See A440 and temperaments.

Four notation systems: English letters, fixed-do solfège, German with H, and Indian sargam. Details here.

Nine meter styles, left-handed mode, light and dark themes, and the accessibility features.

The three rules the tuner follows

These are the reason the app was built, and they are worth stating plainly.

It asserts nothing it cannot know. When the signal is too noisy or too faint to identify a pitch confidently, it says so. It does not display a plausible number to look competent.

It never switches strings behind your back. Pick a string and the meter stays on it. It will suggest that you seem to be playing a different one, because that is useful, but you decide. See why tuners jump strings.

“In tune” means in tune. The needle tracks continuously and never freezes, and the in-tune indicator requires the pitch to hold rather than flashing on a value the string passed through on its way somewhere else. See what cents mean.

It also filters octave candidates rather than trusting the loudest frequency it hears, which is what stops it telling you a low string is an octave flat and walking you toward a break. The mechanism.

Learn

A fundamentals course for every one of the 18 instruments, structured from a first tune-up onward. Not one guitar course with the others as an afterthought.

Ten practice modes, plus a practice streak and a daily goal for the people who find that motivating.

Chord diagrams with full fingerings, every voicing, and playable strums, on every instrument.

Tools

Metronome, drone, scales, a chord-to-scale relator, circle of fifths, capo calculator, and a practice recorder.

The parts that are structural, not features

No internet permission. The app does not request network access from the operating system at all. This is stronger than a promise not to transmit: the OS will not permit it. It also means everything above works with the device in airplane mode.

One permission. The microphone, and only the microphone. Audio is analysed on the device and discarded immediately; nothing is recorded, stored or sent.

No account. There is nothing to sign up for, so there is nothing to leak.

No ads, no subscription.