BOSS Tuner

The number 1 best tuner on the app store. I have litterally tried every other "best tuner app" and they were terrible. This app is easy to read and precise. It doesnt only let you tune in Standard like all the others, it is like an actual tuner that tells you what note you are playing and where you're at on the spectrum. The other tuner apps out there make you pay if you want to tune to any other tuning. Thank you so much!!!!

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No use to me. Interface not great, and results inaccurate - some notes on my Yamaha digital portable grand piano (consistently accurate tuning of course) came up ok but others bizarrely shown as being some way off (by semitones, not just a little bit) so uninstalled. Ended up with Pano Tuner after trying several free tuners, that seems the best so far. I wanted to tune a Kalimba which is quite tricky, and BOSS just couldn't do it.

Great app. I use it a lot! Any reason why the active parts of the display are shifted up and don't lign up with the graphic in portrait position? And the buttons should change the A4 frequency, I guess. Maybe it helps to know I'm using Android 9.

I really wanted to like this tuner, and it looked great, but unfortunately, I need a reference pitch higher than 465 Hz (for bagpipe band bass) drum tuning. For most other applications, this is a great app.

After trying about 10 different misleading "Free tuners" This is the only one that works and is free. Screw all the greedy developers with garbage ads annoying and deceitful. Boss comes through as expected with the best and truly free app. Loser developers take notice.