Bass Tuner BT1 Pro

****I imagine any iPhone.*****To the creator of the app, thank you, for making quick tuning app(from minor adjustments to full scale retune) and allowing us to enjoy it for free. I love and use it so much. Every month without doubt Apple Music takes from me in my opinion too much, you wanting $4.99 and I’m giving you that, you’re not taking it. In my opinion and I am no exception, if you’re using this app for over a month and not dropping the 4.99 for the paid version….frugal, that’s your new nickname😜download you will not regret it!!

Tried several other tuners, all of which were overfeatured or sururpsingly inaccurate, as much as nearly a half-pitch. BT1 is spot on, simple, and uses visual feedback so you can see if a string is tuned from across the room. Does one job and does it very well.