What's New

Minor Bug Fix

App Description

In-Tune is a high precision real-time guitar tuner for your iPhone. The tuner can accurately determine the frequency, musical note and octave for each of your guitar strings. The ability to estimate note and octave makes this a very useful tool to aid musical notation.

The program has two modes of operation, one for determine pitches using harmonic content which is ideally suited for those instruments whose waveforms are complex and rich in harmonics and another for pure tones, best suited for audio engineers.

The program has a simple uncluttered interface with 4 different color sets and a night mode so you can customise to your liking.

We also display a waveform analysis graph allowing you to see a visual representation of the harmonic content.


A440 Calibration (+/- 15Hz)
Pure Tone or Harmonic Content Modes
Fine Tuning Display +/- 50 Cents
Definable Trigger Level
4 Different Colour Sets
Night and Day Modes
Uses 16K FFT for greater precision.

iPhone Screenshots

(click to enlarge)

In-Tune Instrument Tuner screenshot 1 In-Tune Instrument Tuner screenshot 2 In-Tune Instrument Tuner screenshot 3 In-Tune Instrument Tuner screenshot 4 In-Tune Instrument Tuner screenshot 5

App Changes

  • October 22, 2014 Initial release
  • June 14, 2019 New version 1.2