Celestio calculates your birth chart for any date from 1900 to 2100 and any place in the world. The birth time is optional, and you don't need an account. An AI model then writes a personal reading of that chart in plain English. You can save readings to an account and share them privately by link.

For relationships, Celestio compares two charts (partner, crush, friend or family). A free preview shows the strongest connections, and the full written report is a one-time payment of US$2.99 to US$14.99, depending on your country. There is no subscription.

Celestio also works inside AI assistants such as ChatGPT, Claude and Grok through its MCP server, and publishes free astrology guides and articles.

Astrology is offered as interpretation and entertainment, not scientific fact.