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Best Astronomy Calendar Apps

206+ iOS apps curated and reviewed

4.7 avg rating
18 free apps
Updated June 2026

Looking for free astronomy calendar apps? 18 of our 206+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Astronomy Calendar

Astronomy & Space News#1

Astronomy & Space News by Juicestand Inc

Latest NASA, Astrobiology News
Editor's Choice
📡 News
4.8😊(2.7K ratings)
FreeIn-App Purchases
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Astronomy & Space News screenshot 5

Stay updated with the latest astronomy and space exploration news. Discover exoplanet findings, astrobiology advancements, and the search for extraterrestrial life. Enjoy stunning space photos and educational videos from leading space agencies.

What We Love

  • 🚀 Interesting and informative news
  • 👍 Diverse and relevant content
  • 🌟 Excellent source of astronomy and space news
  • 💡 Helpful for staying up-to-date on the latest developments

Room to Improve

  • 🔍 Difficult to navigate and find specific content
  • 🔔 Too many notifications
  • 🌐 Requires external browser to read articles
Sky Guide#2

Sky Guide by Fifth Star Labs LLC

Star gaze constellation finder
Strong Contender
🔍 Reference
4.8😊(26K ratings)
FreeIn-App Purchases
#7in Reference
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Sky Guide screenshot 6

Identify stars, constellations, planets, and satellites in real-time by holding your device overhead. Explore celestial bodies with AR overlays, track satellites like the ISS, and travel through time to view past and future astronomical events. Perfect for both novice and experienced stargazers.

What We Love

  • 🌟 Stunning visuals and graphics
  • 📚 Wealth of information on celestial objects
  • 🧭 Accurate and responsive compass/AR features
  • 🌌 Immersive stargazing experience

Room to Improve

  • 🧭 Occasional compass/location calibration issues
  • 💰 Subscription model limits access to some features
  • 🌍 Lack of support for certain regions/locations
The Moon: Calendar Moon Phases#3

The Moon: Calendar Moon Phases by Vitalii Gryniuk

Worth Considering
☀️ Weather
4.8😐(117K ratings)
FreeIn-App Purchases
#86in Weather
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This app provides a comprehensive lunar calendar, tracking moon phases, rise and set times, illumination, and distance for any location between the years 0001 and 2100. It also includes bonus solar data like sunrise and sunset times.

What We Love

  • ⭐ Accurate moon phase tracking
  • 📆 Useful calendar and planning features
  • 🌙 Informative moon data and insights
  • 👍 Easy to use and navigate

Room to Improve

  • 🐛 Frequent crashes and app instability
  • 💰 Paywall for full calendar access
  • 🔍 Unclear or confusing UI elements

More Astronomy Calendar apps to explore

4
Deluxe Moon Pro • App & Widget
Deluxe Moon Pro • App & Widget
Deluxe Moon Pro • App & Widget
Phase calendar,tracker & notes
Free

This app provides comprehensive real-time and reference information about the Moon, including phases, rise/set times, and astrological data. It also tracks the Sun and offers cultural insights into lunar cycles for planning activities and understanding its influence.

Moon phases calendar with iCal integrationReal-time moon parametersMoonrise and moonset times
☀️ Weather
(7.3K)
free with in-app purchases
5
Night Sky
Night Sky
Night Sky
Guide to Stars,Comets,Meteors
Free

Explore the cosmos with an AI-powered planetarium. Identify stars, planets, and satellites by pointing your device at the sky. Discover celestial objects in augmented reality and share your stargazing experiences with others.

AI personal planetariumIdentify stars, planets, constellations, satellitesAugmented Reality (AR) exploration
🔍 Reference
(482K)
freemium
6
Moon Calendar — MoonX
Moon Calendar — MoonX
Moon Calendar — MoonX
Full Lunar Cycle & Phase Guide
Free

Track lunar phases, moonrise/moonset times, and astrological insights to enhance daily balance and clarity. Plan events, set intentions, and gain personalized guidance aligned with celestial rhythms. Integrates with Apple Health for holistic well-being.

Full lunar cycle trackingMoonrise and moonset timesInteractive moon calendar
☀️ Weather
(21K)
subscription
7
MeteorActive
MeteorActive
MeteorActive
Meteor shower forecast
Free

Get accurate meteor shower forecasts based on your location, moon phase, and light pollution. Discover major events, upcoming nights, and hourly estimates for the best viewing opportunities.

Major events calendarUpcoming nights predictionsHour-by-hour estimates
📚 Education
(2K)
free
8
Planets
Planets
Planets
by Q Continuum
Free

Explore the solar system with a 3D guide. Discover planets, moons, and celestial events with interactive sky views and visibility information. Perfect for budding astronomers.

3D solar system guide2D sky view3D planetarium sky view
🔧 Utilities
(899)
free
9
Star Walk：Find Stars & Planets
Star Walk：Find Stars & Planets
Star Walk：Find Stars & Planets
Night Sky Guide - Star Map AR
Free

Explore the night sky with an interactive guide that identifies stars, planets, and constellations in real-time using augmented reality. Discover over 200,000 celestial bodies with detailed information and track astronomical events.

Real-time night sky mapAugmented reality viewExplore 200,000+ celestial bodies
📚 Education
(25K)
free with in-app purchases
10
SkyView® Lite
SkyView® Lite
SkyView® Lite
Explore the Universe
Free

Identify stars, constellations, satellites, and more by simply pointing your device at the sky. This augmented reality app makes stargazing accessible to everyone, day or night. Explore celestial paths and even travel through time to view the sky on different dates.

Identify stars, constellations, and satellitesAugmented Reality (AR) stargazingSet reminders for celestial events
📚 Education
(18K)
free with in-app purchases
11
Star Walk 2 Plus: Live Sky Map
Star Walk 2 Plus: Live Sky Map
Star Walk 2 Plus: Live Sky Map
Your Free Path to the Stars
Free

Explore the cosmos with a real-time sky map. Point your device to identify stars, planets, and constellations. Discover celestial events and learn about the universe with detailed information and 3D models.

Real-time sky map3D constellation modelsTime machine feature
📚 Education
(93K)
free with in-app purchases
12
Calendar · Planner & Reminders
Calendar · Planner & Reminders
Calendar · Planner & Reminders
Planner Organizer & Agenda
Free

This app offers a streamlined calendar experience with beautiful, intuitive views of your schedule. It unifies events and reminders, allows for quick natural language event entry, and provides contact history. It supports major calendar services and offers premium features through subscription.

Intuitive day and month viewsUnified events and remindersNatural language event entry
📊 Productivity
(59K)
free with in-app purchases
13
SkySafari 7 Pro
SkySafari 7 Pro
SkySafari 7 Pro
Astronomy Guide To Night Sky
$9.99
$29.99 | 67% OFF

Explore the night sky with an extensive astronomy database and advanced planning tools. Discover astronomical events, control your telescope, and connect with other stargazers in real-time.

Extensive celestial object databaseAdvanced event finderTelescope control (ASCOM Alpaca, INDI, StarSense)
🔍 Reference
(4.9K)
free with in-app purchases
14
Moon Calendar + Phases
Moon Calendar + Phases
Moon Calendar + Phases
Lunar phase, timing & position
Free
$4.99 | 100% OFF

Track lunar phases, eclipses, and celestial timings with detailed monthly charts and daily updates. Plan outdoor activities, photography, or gardening with precise sun and moon rise/set times. Features customizable widgets and location saving for global accuracy.

Detailed monthly moon phase calendarDaily lunar phase and eclipse updatesPrecise sun and moon rise/set times
☀️ Weather
(1K)
free with in-app purchases
15
Star Gazer: Sky Map& Astronomy
Star Gazer: Sky Map& Astronomy
Star Gazer: Sky Map& Astronomy
Stars, Moon & Constellation.s
Free

Explore the cosmos by pointing your device at the sky. Discover stars, planets, and constellations with interactive 3D views and augmented reality. Learn fascinating facts about space and celestial bodies.

Interactive 3D celestial object viewsAugmented reality sky explorationIdentify stars, planets, and constellations
📚 Education
(6.8K)
subscription
16
Sky Tonight - Stargazing Guide
Sky Tonight - Stargazing Guide
Sky Tonight - Stargazing Guide
Constellation Star Finder App
Free

Explore the night sky with this astronomy app. Identify celestial objects, discover upcoming astronomical events, and track their positions. Customize your view, set reminders, and access detailed information for a personalized stargazing experience.

Real-time interactive sky mapAugmented reality modeTime Machine for past/future positions
🔍 Reference
(73K)
free with in-app purchases
17
Space NASA & Astronomy News
Space NASA & Astronomy News
Space NASA & Astronomy News
Latest Universe Discoveries
Free

Stay updated on the latest space and astronomy news, including human exploration, universe discoveries, and launches from major organizations. Customize your feed, receive notifications, and engage with a community of space enthusiasts.

Curated space and astronomy newsPrioritized, non-repeating feedPush notifications for major stories
📡 News
(850)
free with in-app purchases
18
Time Nomad Astrology Charts
Time Nomad Astrology Charts
Time Nomad Astrology Charts
Astrology for a Pro
$8.99

This advanced astrology app provides professional-level astrological chart calculations, including tropical and sidereal zodiacs. It offers tools for planetary hours, alarms, and various interactive widgets. Users can create unlimited profiles, take notes, and access a blog for virtual astrology training.

Accurate birth chart calculationsTropical and sidereal zodiac supportPlanetary hours calculator and alarm
🌟 Lifestyle
(2.7K)
free with in-app purchases
19
Star Chart
Star Chart
Star Chart
by ESCAPE VELOCITY LIMITED
Free

Explore the cosmos with this augmented reality astronomy app. Point your device at the sky to identify stars, planets, and constellations in real-time. Discover celestial bodies and their positions, even traveling through time to view the universe's past and future.

Augmented reality sky identification3D simulation of the visible universeReal-time celestial object tracking
📚 Education
(25K)
free with in-app purchases
20
Classic Sky Map 2
Classic Sky Map 2
Classic Sky Map 2
Astronomy made easy.
Free

Explore the cosmos with an intuitive and beautiful sky map. Easily identify stars, planets, and constellations by simply pointing your device at the sky. Track celestial events and understand astronomical movements with time-lapse features.

Live sky trackingInteractive earth mapTime-lapse sky simulation
📚 Education
(8.9K)
free with in-app purchases