Observer Pro app icon

Apps Like Observer Pro for iPhone and iPad

Plan observations and capture celestial events

Plan observing sessions by predicting celestial object visibility and weather conditions. Track star positions and calculate exposure times for astrophotography. Set location and date to get accurate sky maps and event alerts.

by Joshua Bury★ 4.649 ratingsEducation$13.99Data updated 2026-09-08
App detailsView in App Store

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Ranked alternatives

Showing 841–860 of 1,000 ranked alternatives.

  1. Ji Calendar app icon

    Ji Calendar

    Jewish Interactive Limited

    Design space kids and learn Jewish facts

    Learn about the Jewish through interactive modules and educational games. Create and customize a 'space kid' character to guide learning. Track events, explore historical and cultural context, and complete quizzes to reinforce knowledge.

    ★ 5.02 ratingsEducationFreeData updated 2026-09-11
    App details
  8. Cluster app icon

    Cluster

    University of Hawaii

    ★ 0.00 ratingsEducationFreeData updated 2026-09-11
    App details
  14. AR-Physics app icon

    AR-Physics

    AR-Physics UG (haftungsbeschraenkt)

    ★ 0.00 ratingsEducationFreeData updated 2026-09-06
    App details

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.