Best Astronomy Apps for iPhone / iPad

Find the best Astronomy apps for iPhone / iPad within this page. 12 Astronomy apps are reviewed and ranked based on originality, timeliness, and user-friendliness.

Last updated 03-29-2017

Star Walk ™ 2 Free - Guide to the Night Sky to View Stars, Planets, Meteor Showers & Constellations
1st

Star Walk ™ 2 Free - Guide to the Night Sky to View Stars, Planets, Meteor Showers & Constellations

iOS

Seller: Vito Technology

35 3.5

There is nothing like staring at the magnificence of the stars to make you feel tiny. But have you ever wanted to know more about those glittery floating dots? Astrology is the oldest natural science, and its observations have dated back since the beginning of recorded history. With a combination of modern-technology and past-knowledge, we now know more than ever about this source of fascination - and that is displayed clearly and intricately within this app.

Scan the skies by swiping with your finger, and the app will use its real-time motion tracking to display sensational images of constellations. Upgrade the app and be able to snap a photo of the heavens at night, and the sky map will give you detailed information on what you are gazing at. You can change a number of functions in the settings menu to alter how your screen displays the star readings, such as nigh mode which gives the screen a red glare.

▲ Swipe the screen to explore the atmosphere and view titled star constellations!

▲ View comprehensive information on the planets and their behavior.

▲ Observe the invisible structure of space with up to six filters - includes a red night vision mode!

Learn more about the stars, constellations, satellites, planets, and deep sky objects. Take a peek into the future, and view accurate data of the moons' expected path. Or take a trip back by changing the time and date, and observe past patterns and events at a magnitude difficult for the human mind to speculate. Navigate with ease using the compass as your guide, and browse into the unknown.

Whether you are keen to relieve your curiosity, or are planning some star gazing activities on an upcoming rural trip, download this app to fuel knowledge and encourage conversation.
The galaxy - in your hands!

iOS
Star Walk ™ 2 Free - Guide to the Night Sky to View Stars, Planets, Meteor Showers & Constellations

Star Walk ™ 2 Free - Guide to the Night Sky to View Stars, Planets, Meteor Showers & Constellations

Free

View-Master® Space
2nd

View-Master® Space

iOS

Seller: Mattel

35 3.5

It’s your free ticket to space! This tool allows anyone who owns a View-Master VR viewer to have a look at an excellent virtual version of the interstellar environment! Have a 360-degree view of the galaxy and get acquainted with the different kinds of constellations, stars and planets!

Take a closer look at a spacecraft or get the chance to launch a shuttle by inputting a series of commands! Experience the thrill and adventure of exploring the cosmos using your VR viewer and phone! Simply launch the app, place your device inside the viewer and you’re ready to take off!

▲View gorgeous forms of popular constellations like "Ursa Major."

▲Get fast facts on random objects you see on this virtual space viewer.

Venture into a virtual, interplanetary exploration while experiencing the comfort of your own home! Be amazed by the awesome cosmic display and learn more about Mars and Earth’s similarity, the distance of Jupiter or the beauty of Ursa Major!

Turn your VR viewer into a planetarium and enjoy an educational virtual tour! Take a quick view of the stars before hitting the bed or while waiting for a once in a blue moon meteor shower! Bring the cosmos inside your mobile and be an instant space explorer!

iOS
View-Master® Space

View-Master® Space

Free

LunaSolCal
3rd

LunaSolCal

iOS

Seller: Volker Voecking Software Engineering

25 2.5

When it comes to natural lighting, nothing beats knowing when the sun will really rise and for how long. The same goes for the moon (and all its phases). That is why this lunar and solar calendar app is a better than any regular weather tool.

It goes especially for those who like the sight of these celestial bodies rising just above the skyline. Its accurate estimates of sunrise and sunset is perfect for timing that wonderful rooftop picture of the dawn. A quick glance is all it takes!

▲Know the lunar and solar forecasts for your city!

▲View additional details such as the altitude and the effects of the solstices!

Other useful information include the altitude as well as the length of day. It is perfect, not just for morning and dusk but knowing just how long you have to take those sunlit walks in the park or afternoon strolls.

A similar idea applies to the phases of the moon. Know what day has just that right crescent shape for a good picture. Where it is enough to see the clouds for the weather, a solar-lunar calendar is a better schedule for seeing that perfectly lit skyline!

iOS
LunaSolCal

LunaSolCal

$2.99

Solar Walk ™ 2 - Space Journey Through Time and Planets of the Solar System
4

Solar Walk ™ 2 - Space Journey Through Time and Planets of the Solar System

iOS

Seller: Vito Technology

30 3

Dive into outer space with this visually stunning, interactive learning tool that simulates our solar system based on real celestial mechanics and the most up-to-date photographic data available to mankind! Happily tour the sun and planets, orbit with satellites, and locate the position of stars and constellations.

Observe Kepler’s and Newton’s laws at work as you marvel at the planetary and satellite motions in orrery or true-to-scale views, powered by a “Smart Time Machine” that slows down and speeds up rotation and revolution when you zoom in and out. Freely access the past, present, and future life of our solar system - check the calendar to know about and witness thrilling astronomical events!

See Sputnik and other historical satellites fly over the Earth. Feel the pride and excitement as you travel through time to follow the voyages of mankind’s space missions, including Cassini-Huygens, Curiosity, and New Horizons - the timeline will tell you exactly when to witness their flybys, landings, and other milestones!

▲ Fulfill your space and time travel plans - see our solar system in motion from the past to the future!

▲ Beautifully up close and personal; explore planets and watch satellites and spacecrafts fly by!

▲ Delight in a timeline of space missions and astronomical events with accompanying images and descriptions!

Explore space with your headphones in to listen to a serene soundtrack. Learn exactly what you need to witness the next eclipse, equinox, solstice, or closest approach. Observe our solar system in the highest resolution of textures, complete with auroras, solar flares, and more. Live the dream and discover how it feels to take a walk in space, whether you are riding the bus or sitting on your bed during a restless night.

Freely hop from Mercury to Neptune. Explore the chilly expanse of the Kuiper Belt and visit Pluto and the hypothetical Planet Nine. Let the cosmos awaken your thoughts, emotions and ideas wherever you are on Earth. Satisfy the curiosity and grasp a better understanding of our solar system!

iOS
Solar Walk ™ 2 - Space Journey Through Time and Planets of the Solar System

Solar Walk ™ 2 - Space Journey Through Time and Planets of the Solar System

$2.99

Meteor Shower Calendar
5

Meteor Shower Calendar

iOS

Seller: ccw

30 3

Stargazers who use apps for meteor showers tend to end up relying on complex information to track theses astrological wonders. That is not such a good thing when you are trying to show the stats of a meteor shower to people who don’t know much about astronomy to begin with.

Fortunately, this simple meteor shower app is ideal for teaching the basics to beginner stargazers. Just scroll down to see the information on all the on-going meteor showers of the month. You can see the start, peak, and ending dates of all events, as well as what the moon phase will be on those nights!

▲ Get the list of all ongoing meteor showers for the month. Scroll down for more.

▲ Each meteor shower comes with a general image of its formation as well what phase the moon will be on its peak date.

▲There is also a weather forecast that you can consult so you can see if the sky’s clear enough to view.

There is also a graph that presents additional information about these meteor showers such as their number of stars. And much like the calendar, the information is simpler to digest for those studying these celestial events for the first time. That is why an app like this is ideal for stargazing camps with kids. The same goes for dates! Sharing a nice bit of trivia or two is always a good way to make something more meaningful. Meteor showers are no exception!

iOS
Meteor Shower Calendar

Meteor Shower Calendar

$0.99

SkyView Free - Explore the Universe
6

SkyView Free - Explore the Universe

iOS

Seller: Terminal Eleven

20 2

Scan the sky with your smartphone and be guided on an incredible journey throughout the universe with this stargazing tool! Search, locate, and examine an abundance of stars, constellations, and other celestial bodies across space to learn facts and figures about these wonders.

Using the most recent astronomical data for mankind's oldest scientific hobby, the app utilizes an augmented reality overlay, "Sky Paths," and smart time travel to provide an accurate and exciting learning experience for amateur astronomers all over the world. View the sky in the time period you prefer - the Age of Exploration in the past, or an unknown point of time in the future?

Take beautiful photos as you witness thrilling astronomical events and share the memorable experience with loved ones on social media. With no WiFi requirements, you are free to reach out to the stars and discover the glistening worlds that lie beyond the terra firma you are standing upon. Step into a sense of awe and wonder only the cosmos can inspire!

iOS
SkyView Free - Explore the Universe

SkyView Free - Explore the Universe

Free

Mooncast - The Phases of the Moon
7

Mooncast - The Phases of the Moon

iOS

Seller: Mathieu Routhier

00 0.0

Do you find it relaxing to look at the moon at night? If you do, here is an app that is bound to spark your interest. There is no need to constantly check your calendar, or browse through the internet to know the moon's forecast thanks to this app!

Swipe your screen to check out the moon's status yesterday, today, tomorrow, and the next day. See if it will be a waxing crescent, waning gibbous, last quarter, or first quarter and know how much of the moon will be illuminated as you prepare for some Luna watching!

▲ Know what the moon's phase will be today and tomorrow and how bright will it glow in the night sky!

▲ Gleam with joy as you acquire accurate moon predictions in the palms of your hands!

▲ Turn on your alarm and be notified when the new or full moon may be visible. Enjoy the your lunar watching!

Packed with a realistic and detailed representation of the moon every day, checking its phases has never been so fantastic and accurate! Not to mention the cloud animations included, get excited by the prospect of viewing the real thing. In addition, this app allows you to browse the phases of the moon, since 2011, right up to 2025!

Wondering when will be the next new moon or full moon? Don't fret, you can check the almanac for date and time predictions. Make sure you don't forget to turn on your alarm the day before or the same day to remind yourself, especially when you are waiting for that specific day to arrive. With this tool at your fingertips, checking out the phases of the moon has now been made even easier and hassle-free!

iOS
Mooncast - The Phases of the Moon

Mooncast - The Phases of the Moon

$0.99

NASA App
8

NASA App

iOS

Seller: NASA 

00 0.0

Have you ever wondered what is out there beyond the skies? What do we see from the satellites? How big is the galaxy? What have we learned so far?

As humans, we are curious to know what is going on in NASA. What are their upcoming missions? Learn NASA activities, space missions, read articles of new discoveries, explore space and earth through a number of satellite and local images and even watch videos and live feeds from space launches! If you are astrophysics geeks, you love to explore the world or you are simply inquisitive about scientific discoveries, this app will help you learn that.

▲You can tap from any 9 sections such as Mission, Images, Videos, Tweets, TV and Radio, News and Features, Centers, Featured stories and Programs. Tap any section and load details and skim each detail.

▲With the high tech space telescopes and satellites, NASA shares with us their high definition captures of the world above us. Tap any of the photos to see the full image. A detail button is located in every photo. Photo stories help us learn more about the sighting.

▲Do you want to know what NASA is up to? Find out their projects and learn more of MMS, SMAP, OCO-2, etc. Be updated of what NASA is up to.

Everybody knows what the acronym NASA is about. Whenever we talk about NASA, we imagine aliens and intergalactic discoveries. NASA is a US Government agency that encourages peaceful applications in aeronautics and space act. This app educates people of the activities within the facilities and what we need to learn outside of our world and also inside. Discoveries, projects and other activities related to the space system is covered in the app. If you are an educator, you can use information you can learn and share that in school. As an astrophysicist or scientist, these updates are quite helpful to other future activities. The app provides more than just information, it also gives guidance to what we look forward to in the future.

iOS
NASA App

NASA App

Free

Aurora Forecast.
9

Aurora Forecast.

iOS

Seller: TINAC Inc.

00 0.0

Are you planning to fulfill your dream of traveling to Sweden or Alaska to witness the surreal phenomenon that is the Northern Lights? Keep track with this app! Know when is the right day and time to spot them. Be informed of any solar activity to get forecast of the next northerd lights dance. Don't just take a chance, find out for yourself!

Catch the beautiful northerd lights by learning with the help of infographs and solar explosion alerts. A handy tool that gives you a data forecast provided by NOAA POES and Geophysical Institute of UAF. Add it on your bucketlist as you now have the opportunity to get a glimpse of it by following the graphic forecast.

▲Check out the Forecast in real time. Find out the sun patterns and SWPC Ovation forecast to see any upcoming activity.

▲Watch out for peaks and highs, as they predict possible aurora activity.

▲See graphs of Radio flux and mid to high latitude KP index for assisted signals of particles that may cause auroral activity.

▲Check out the norther and southern prediction through radio wave frequency using the OVATION-Prime Model.

If you are a real aurora chaser, dreams of gazing over the beautiful aurora borealis, or want to learn about this wonderful sight, you may find this tool handy to locate and find any activity with the analyzer map. For both the northern and southern hemispheres, you can catch this majestic solar activity of bright colors by reading the highs and lows of possibility. Authentic information comes from NOAA POES, a space weather prediction center for auroral activities, so you don't have to wait forever for those lights to come. Plan out your game and see the sun ray movements and be on your way when the odds are high. Best of all, get notifications from this app when the night looks to be promising!

iOS
Aurora Forecast.

Aurora Forecast.

Free

Night Sky Lite™
10

Night Sky Lite™

iOS

Seller: iCandi Apps

00 0.0

Can you imagine your phone turning into a telescope? When Galileo first started learning about astronomy, he too looked up at the sky with his naked eye. Even without a telescope, you can discover the locations of stars.

Find constellations and star formations, and even the positions of planets like Venus or Mars. Know the best times to stargaze with the weather check, and camp out with your family and look in awe at the twinkling heaven lights!

▲ Point your device at the sky to see star constellations.

▲ Learn more by tapping on them, and see visual representations of the figures they form.

▲ Scan the planets and read all about them.

Camping is a great way to stargaze at night. When there is less light pollution, head away from the city to a quiet retreat in the woods. Bring this tool with you and enjoy looking up at the sky with your friends, and learn a lot of cool things. Learn what the constellation is about with just a click!

iOS
Night Sky Lite™

Night Sky Lite™

Free