It utilizes your device's built-in microphone. Tuner also has the ability to tune to a custom note and can be used to tune almost any instrument.
Tuner is a must-have app for any musician and is the only app for your apple watch.
Screenshots
Tuner FAQ
Is Tuner free?
Tuner is not free (it costs 0.99), however it doesn't contain in-app purchases or subscriptions.
Is Tuner legit?
⚠️ The Tuner app has poor ratings and negative feedback. Users seem unsatisfied with its performance or features.
This app is excellent. Much better than others like it. It’s very responsive and accurate. Thank you! Exactly what I was looking for.
The screen doesn’t remain always on though (series4, wos8.5.1, app version 1.0.3) but still an excellent app.
Wrong Letters Shown
This will break a string instrument lol. The Notes shown are not correct for me on Apple Watch Ultra
Where's My App?!?
I just purchased, and your app page shows that I purchased. Yet it is not listed in my purchased apps or downloaded to my my phone or my watch.
App disappeared synced to new phone
App says purchased but will not install. I see others have had the same problem but I can’t find the solution. Otherwise works fine
Difficult to get working. Maybe useful in an emergency?
The app picks up notes from my acoustic guitar. Like other digital tuners it’s a little finicky but this app is far worse than those. Either do to microphone issues or perhaps Apple limits the mic API on the watch to avoid draining the battery. In any case, it’s just easier to find a tuning fork online and tune it the old fashioned way.
Report problems
This app not installed on my device.
It cant hear you
This app is able to hear my acoustic guitar probably 80% of the time but it can’t hear my electric at all. It’s probably an issue with the microphone in the watch so it can’t all be blamed on the app, but it’s still an app you pay for that doesn’t work properly.
First app I paid for for Apple Watch doesn’t work
Bought my first Apple Watch, an ultra 2. Latest version of Watch OS
Downloaded the app, it opens, asks for microphone access.
Press start to start tuning, I just get a screen with a note on it, I play a string , no reaction.
Change every possible thing in the app, zero reaction.
On top of it, the crown moves through the notes waaay too fast, so even if I wanted to select a different note, it is impossible to do.
Totally broken spend your money elsewhere.
Totally bummed
Not too good; further testing required for a final opinion though.
It seems like a good app but it’s a little slow and doesn’t really meet my needs.
I’m running it on watchOS 10 on my Apple Watch Ultra and it works nowhere near as good as just a simple little snark tuner.
I got what I paid for though, it has SOME tuning capabilities for its low price, paying 10x more for a snark tuner, you also get what you pay for.
Doesn’t work
This didn’t work on my old watch and also doesn’t work on my brand new Ultra 2. It claims that microphone access can be enabled in the phone but since it is a watch only app, it has no phone controls available. I wonder how this non working app appears in the watch apps home page.