App Store
On both stores
Guitar Tuner - Chromatic
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" - Joshua Joe (New Zealand) "Awesome! - One of the best t…