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
What's actually in the sky above you, right now. The Sun and Moon use Meeus algorithms (verified to sub-arcminute on the Sun, ~0.01° on the Moon, with rise/set matching published almanac times); the five naked-eye planets use Keplerian elements (approximate, ~1°, plenty to point you the right way). Set your location from presets or type lat,long — no GPS needed — and it persists. Times show in your device clock.
Features
- Sun & Moon altitude + rise/set
- Moon phase & % illuminated
- Which naked-eye planets are up & where
- Twilight / stargazing conditions
- 100% offline — no GPS, no login
Good to know
- Planet positions are approximate (~1°), labelled as such
- You set the location (no on-device GPS)
- No deep-sky objects or constellations yet
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