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 pocket toolkit — calculator, tip & split, and unit conversion — that works completely offline on the glasses.
Features
- Calculator with a big keypad
- Tip & bill split
- Length / mass / temp / data conversion
- 100% offline — no login
Good to know
- No currency conversion (offline)
- Calculator is standard, not scientific
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