A chromatic guitar tuner that uses the Nothing Phone's Glyph LED strips as a visual strobe display. The LEDs tell you when you're in tune.
Every feature is designed around the Glyph interface — the LED strips on the back of Nothing Phone that most apps ignore entirely.
The LED arc acts as a precision needle — the lit segment moves left when flat, right when sharp, and holds centre when in tune.
A classic strobe effect — LED segments rotate clockwise when sharp, counter-clockwise when flat, and stop dead when in tune.
YIN algorithm with 4096-sample analysis window. Tested against 14,000+ samples — 100% frequency accuracy across all standard guitar strings.
The LED strips display beat patterns positionally. Downbeats light the full ring. Off-beats use individual dots. Supports 4/4, 3/4, 6/8, 5/4 and more.
Tap the beat to set the metronome tempo instantly. BPM range 30–300. Time signature selector with persistent settings between sessions.
Standard guitar (E2–E4), bass guitar (E1–G2), ukulele (G4–A4), and violin (G3–E5). Standard chromatic mode works with any instrument.