Plate solving and push-to telescope navigation for smartphones
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Stage
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Founded
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Based in
US
SE
Pricing model
Freemium
Free
Pricing
Free with optional one-time purchases: Plus $9.99 (Messier and Caldwell catalogs, Bayer or Flamsteed designated stars), Pro $29.99 (everything in Plus, NGC and IC catalogs, remote control, ASCOM Alpaca/INDI/LX200/Stellarium connections), Pro Beta pricing $24.99
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Key features
Live plate solving with accuracy up to within 10 arcseconds
Computes coordinates in less than a second
Immune to magnetic field interference
Works in light-polluted skies
Complete offline operation
Personalized guide to tonight's best targets
Remote control between devices (iOS)
Integration with Stellarium and SkySafari
Live streamed answers with Markdown and code
Tool activity while the agent works
Answer the agent's questions and approvals
Send and receive images, video, voice messages and files
Share a place from a map and share from other apps into a bot
One chat per bot, like a messenger
Bot details: skills and tools
Two-pane layout on foldables and the iPhone Duo
Light and dark theme
Optional Stay connected on Android for replies in the background
What makes it different
On-device plate solving eliminates compass and gyroscope drift and lags that traditional astronomy apps experience
Sub-arcminute precision navigation that outperforms standard planetarium apps
No subscription required, only optional one-time purchases
Compatible with existing telescope and equipment without proprietary hardware lock-in
Unofficial app that connects directly to your own self-hosted Hermes Agent gateway with no Royan server in between
Open source under Apache 2.0 license
No data collection—messages and files stay on your gateway only
Optimized interface for foldables and iPhone Duo with two-pane layout