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Sidera Astrology Calendar & AI

VerifiedAstroDir has confirmed the app's owner, who keeps this listing up to dateAstrologyVedic Astrology

Sidera is an astrology planner for choosing dates for business launches, exams, beauty appointments and other milestones. Compare activity timing, explore personal transits and ask an AI assistant for context. Free to start.

4.0 (1)
Sidera official artwork reading The astrology planner built from your birth chart, beside a monthly calendar whose days are scored from peak to low

Editor note

Last checked September 17, 2026
  • The calendar scores every day against the full natal chart and shades it, instead of giving one sun-sign paragraph.
  • The transit timeline separates strength from meaning: gray shading carries intensity while arrows mark supportive against challenging.
  • Find best date runs the logic backwards, comparing dates in a 7, 30 or 90 day window by rating for a chosen activity.
  • Calendar timing can be switched between Western tropical and Jyotish Lahiri sidereal, with the natal chart system set separately.
  • Onboarding asks for birth date and birthplace, then requires an account before showing any result.

Best for

People who want transits laid out as dated windows they can plan around, and who do not mind creating an account to see them.

Overview

About Sidera Astrology Calendar & AI

Sidera is an astrology date planner for business launches, exams, beauty appointments and other decisions. Choose an activity, set a 7, 30 or 90 day range, and compare dates by rating, lunar phase and timing notes.

Plan when to start a business, release a product, sign a contract, attend an interview, take an exam or begin a course. Beauty activities include haircuts, hair coloring, manicures, pedicures and facials. Relationship milestones, travel and moving are also covered. Choose dates that fit your real schedule and preparation.

Personal birth charts and transit timelines add context alongside activity timing. Open a day or transit and continue with the AI assistant; the selected chart and date travel with the question. Compatibility offers another way to explore relationships. Check the activity, system and inputs shown with each result.

Sidera runs in the browser at app.sideraai.com and is also available on Android. An account is required for the app. The free tier includes daily readings, the natal chart and core insights. Pro costs $9.99 a month or $49.99 a year and adds past and future day viewing, deeper AI readings, unlimited conversations and the complete Find best date feature.

FAQ

What is free?

The daily reading, your natal chart and core insights. The public daily horoscope section needs no account at all. Everything inside the app requires signing up first, including the free tier.

What does Pro add?

Viewing past and future days, deeper AI readings, unlimited conversations and the complete Find best date feature. It costs $9.99 a month or $49.99 a year.

Can I use it without installing anything?

Yes. It runs in the browser at app.sideraai.com. An Android build is on Google Play.

Which zodiac system does it use?

The calendar can run on Western tropical or Jyotish Lahiri sidereal timing, alongside cultural and religious calendars. The system saved for your natal chart is a separate setting.

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