Preview
As seen through the Display Open live preview ↗A live render at the true 600×600 Display size. On the glasses the dark areas are fully transparent — only the bright UI floats over the real world. If it stays blank the app blocks embedding; use the link above.
About
A hands-free metronome for the Display — practice an instrument or drill a tempo without ever reaching for your phone. The click is scheduled on the WebAudio clock (not setInterval), so it stays tight even while the page is busy, and a big luminous orb pulses on every beat with an accented downbeat so you can feel the time from the corner of your eye. Pure D-pad: Enter play/stop · ↑/↓ ±1 BPM · → tap-tempo (tap a few beats and it locks to your speed) · ← cycle the time signature (2–6 beats, or steady with no accent). 30–300 BPM. Your tempo and signature persist. 100% offline, no login.
Features
- WebAudio-scheduled click — rock-solid timing
- Luminous beat orb + accented downbeat
- Tap-tempo (→) — set BPM by feel
- Time signatures 2–6 (or steady)
- 30–300 BPM, tempo & signature saved
- 100% offline — no login
Good to know
- Audio needs the device unmuted
- Subdivisions/polyrhythms not supported yet
- No setlist of saved tempos (one current tempo)
Data safety
No third-party sharing. Herald doesn't sell or share your data, and there are no ads or trackers.
Minimal collection. Only what a linked service needs — provider tokens are encrypted on Herald's server and never stored on the glasses.
Encrypted in transit. All traffic is HTTPS.
You're in control. Disconnect any linked service at any time from the companion.
Ratings & reviews