TuneLab [by AudioLab.tools]

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About this app

A tuner that behaves like an instrument, not a game.

TuneLab shows the note, the target frequency and the deviation in cents as a number, on a needle that follows the string instead of faking calm. A wobble readout says how much the tone actually drifts over the last second. Everything a tuner should simply have is free: chromatic mode, every preset, your own A4.

THE TUNER
- Chromatic, 40 Hz to 2 kHz, with note name and target frequency in plain sight
- Cents as a number, plus a needle; haptic tick when you land in tune
- The honest wobble readout: steady or drifting, in plus-minus cents, never smoothed away
- Raw microphone path, so noise suppression cannot smear the pitch
- Below 60 Hz the app says a phone mic gets vague, instead of pretending

YOURS TO SET
- A4 calibration from 415 to 466 Hz, with one tap to 432, 440 or 442
- Presets for guitar, drop D, bass, ukulele and violin, with per-string lock
- Reference tones for any target note

FREE AND PRO
The tuner is free and complete: chromatic mode, every preset and tuning, A4 calibration, without limits. That exact list sits behind a yearly subscription elsewhere; here it is simply the product. Pro is a one-time purchase (no subscription) and adds the intonation report: a guided pass per string, open plus 12th fret, with a saddle direction per string and a PDF for the bench, plus run history and the historical temperaments (just, meantone, Werckmeister). The price stays where it is when features land.

THE INTONATION REPORT (PRO)
Tune the open string, fret the 12th, and see per string how many cents the length is off and which way the saddle should move. For guitar techs, builders and players who want to know. Honest about its limits: cents are relative to your phone's mic and your A4, and pressing hard bends the note sharp, which the flow reminds you of.

THE AUDIOLAB FAMILY
Each app measures one honest thing, on your device, with nothing uploaded:
- SignalLab: every test signal, tones to sweeps
- MicLab: your microphone, checked in 12 seconds
- RoomLab: your room's acoustics, from a clap
- LevelLab: loudness the way streaming platforms hear it
- NoiseLab: how loud it is where you stand
- HearLab: your ears, left against right
- TuneLab: the strings all of it plays through

No account. Nothing leaves your phone. There are no ads in this app and no ad software inside it.
Chromatic tuner with cents as a number, your own A4, presets. Honest needle.
Updated on
Sep 2, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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What’s new

TuneLab 0.1.0: the first release. A chromatic tuner with cents as a number, an honest wobble readout, your own A4 and every preset free.