Licenses

© 2026 Jan Vrána, Czech Republic. All rights reserved.

HoroscopePrompt is a proprietary application. Its source code, content and design are not provided under an open-source license and may not be copied, modified or redistributed without the author's written consent.

Ephemeris data

Body positions are derived from the NASA JPL DE440 ephemeris, which is in the public domain.

Third-party libraries (open-source)

• React, React-DOM — MIT (© Meta Platforms, Inc.)
• Vite, @vitejs/plugin-react, vite-plugin-pwa — MIT
• astronomy-engine — MIT (© Don Cross)
• moment-timezone — MIT (© JS Foundation and contributors)
• tz-lookup — CC0-1.0 (public domain)

These libraries are used in compliance with their licenses (notably preserving the copyright and license text).

Font

The zodiac sign glyphs are derived from the DejaVu Sans font (a permissive license based on Bitstream Vera and Arev).

Trademarks

The names and logos of the AI services (ChatGPT, Claude, Gemini, Perplexity, Grok, Le Chat, Copilot, Meta AI, DeepSeek) are trademarks of their respective owners and are used only to identify and link to those services. HoroscopePrompt is not affiliated with or endorsed by them.