Support

Simple Guitar Tuner · Answers to the common questions, and an email address if yours isn't here.

Tuning

It isn't hearing my guitar.: Check that microphone access is granted in Settings › Privacy & Security › Microphone, and that nothing is covering the bottom of the phone. Pluck one string on its own and let it ring.
The reading jumps between strings.: Damp the strings you are not tuning. Sympathetic ringing from a neighbouring string can compete with the one you plucked, particularly on the two lowest strings.
How close is "in tune"?: The display turns green within five cents of the target pitch — tight enough that chords ring clean up the neck. The reading itself is shown to the cent, so you can see exactly where you are inside that window.
Which tunings does it support?: Standard tuning only: E2, A2, D3, G3, B3, E4, referenced to A4 = 440 Hz. Alternate tunings, capo offsets and other instruments are not supported.
Does it work on an electric guitar?: Yes. Anything the microphone can hear works — an electric through an amp, or played unplugged close to the phone.

What is Premium?: Premium unlocks automatic string detection, so the tuner follows whichever string you play instead of the one you picked by hand. Tuning itself is free and always will be.
How do I cancel or manage my subscription?: On your device, open Settings › [your name] › Subscriptions, or use Manage Subscriptions. Cancelling stops the next renewal and leaves access running until the period ends.
How do I restore a subscription on a new device?: Open the Premium screen in the app and tap Restore Subscription, signed in with the same Apple Account that bought it.

My question isn't here.: Email niklas@helloniklas.com and I'll get back to you.