Last Harmonic LLC sort Guitar Tuner - Chromatic v3.0.10
iPhone, iPad / Outils / Accordeurs: A simple, free tuner that works. What the users are saying: 'This is the only chromatic tuner that I tried on here that actually works.' - dharris (USA) 'Great app, love the noise cancellation thingy and it's probably the most accurate tuner on the app store'...
www.440audio.com/fr/software/vi21590-Last-Harmonic-LLC-Guitar-Tuner-Chromatic/