Tune by feel, not by sight.
Most tuners buzz once when you land in tune. TuneCue listens through the microphone the whole time you're playing, and uses continuously updating, directional haptics as the interface for the entire process — sharp, flat, or dead on, felt the instant it changes.
A sighted user can glance at the screen if they want to — it shows the detected note and cents offset in real time. A blind user should never need to. That's the whole product.
Get notified at launchBuilt to be felt, not watched
Every existing tuner treats haptics as an afterthought: a single buzz to say "you're there." TuneCue treats touch as the primary interface for the whole tuning process, from the first note you play to the moment you land in tune — continuous, directional, and immediate.