In the past, to “see the stars” you would need an astronomy expert with a telescope, maybe a handbook or two, and of course a clear night sky to find and identify objects in space. The only way to access those things was usually to visit an observatory, take a class, or attend an event out in the desert. We didn’t just have a stargazing app or astronomy app on our phones!
Indeed, telescopes are not cheap, and the learning curve in general seemed very intimidating. If you’ve ever been lucky enough to be somewhere with dark skies on a clear night, you literally do see billions of stars…
Luckily, for today’s stargazers searching for the best stargazing app, there are several options available, many of which are free! These best free stargazing apps for Android and iPhones will make stargazing as informative an activity as it is enjoyable.
We’ve put together a short list of the best star tracker apps, in no particular order, for both Android and iPhone users. Whether you’re looking to get serious about all things astronomy, or just photograph the Milky Way, there are plenty of apps on this list for you!
[Related Reading: Best Lenses for Milky Way Photography]
Best Star Tracker Apps: At a Glance
This guide covers five of the top free star tracker apps for Android and iPhone, plus a quick look at the best tools for tracking the sun, moon, and Milky Way core.
- SkyView – Beginner-friendly with offline mode and ISS tracking
- Star Chart – Stunning visuals with optional 3D object viewing
- SkyWiki – Encyclopedia-style app with astronomy news and event calendar
- Star Rover – Augmented reality mode with global sky simulation
- SkEye – Advanced planetarium with telescope PUSHTO guidance
- Sun, Moon & Milky Way Tracking – Tools for photographers and planners
5 of the Best Star Tracker Apps Available
SkyView App
SkyView holds its own among the best star tracker apps out there. This beautifully designed, easy-to-use app provides a perfect companion for stargazing, and it does not require Wi-Fi to function. The unpaid/free version offers a number of interesting features that you won’t find in other star tracker apps, and they’re easy to use. With a single tap, you can point your device at the sky and access a detailed description of a variety of objects, including satellites, stars, planets, constellations, and more.
SkyView also allows users to enable night mode so they can track objects even during the day without washing out the display. As an added bonus, the app includes an option to play mellow ambient music, which makes the overall experience that much more relaxing and enjoyable. One of my favorite things to do with SkyView is to watch for the ISS (International Space Station) to fly over. It’s often visible even in suburban scenarios with moderate light pollution, and SkyView will alert you when a pass is approaching so you don’t miss it.
The offline functionality is worth calling out specifically. Because the app doesn’t require a data connection to work, it’s ideal for dark-sky locations where cell service is spotty, which is often exactly where the best stargazing happens. If you’re heading out to the desert or a rural area for astrophotography, SkyView will still function reliably once you’ve opened it.
Star Chart
Like other star tracker apps on this list, Star Chart is free and contains exceptional features. It’s worth noting, however, that you’ll need to pay through in-app purchases to access the best of them. The upside is that many users find the premium features well worth the price. One standout feature is the 3D model view, which lets you observe particular objects in three dimensions during the night, bringing an exciting new dimension to virtual stargazing.
The app is also very easy to use. Triggering more information about any object requires only a single tap, and the image quality for both Android and iPhone users is excellent. The star maps are crisp and visually polished, making Star Chart one of the more aesthetically pleasing options on this list. If you appreciate a beautiful interface as much as accurate data, this one is worth a look even at the free tier.
SkyWiki
Google Play
Although SkyWiki is not a full planetarium simulator, it probably has the best interface of any app on this list. It functions more like an astronomy encyclopedia than a sky map, which makes it a great companion to the other apps here rather than a direct replacement. The design is elegant and intuitive, and the app includes several unique features that enhance its usability.
The Periscope page visually traces the rise and fall of the sun and moon throughout the day, which is particularly useful for planning golden hour shoots or anticipating when the sky will fully darken. SkyWiki also aggregates astronomy news updates in one place, which is especially helpful for users who want to stay on top of upcoming astronomical events. The Calendar page rounds things out with detailed information about lunar phases, planetary events, meteor showers, and more. If keeping up with what’s happening in the night sky is important to you, SkyWiki makes that effortless.
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Star Rover
Star Rover offers even more information than some of its closest competitors. The standout feature is its augmented reality mode, which overlays detailed information about a selected celestial object directly onto your camera view. What makes it especially interesting is that you’re not limited to your current location. You can simulate the sky as seen from any place in the world in real time, so if you want to preview what the stars will look like from a location you’re scouting for a future shoot, Star Rover can show you that before you ever leave home.
In terms of design and user experience, the app’s visual aesthetic is minimal, and it can lag occasionally as it updates in real time. That said, it’s still a solid tool for tracking stars and planning observations. It’s worth noting that while the free version does feature ads, they’re not as intrusive as the ads in some of the other star tracker apps on this list.
SkEye
SkEye is one of the best star tracker and planetarium apps available, excelling as a tool for both observational and backyard astronomers. Although the interface is sleek and less stylized than some other applications, it makes up for it with the depth of its functionality. The app displays right ascension, declination, altitude, and azimuth coordinates in real time, giving you accurate positioning data that more casual apps don’t provide.
One of SkEye’s most practical features is its PUSHTO telescope guidance. If you have a Dobsonian or any other manual telescope, you can strap your phone to the optical tube and use SkEye as a pointing guide, no motorized mount required. It’s a surprisingly capable feature for a free app, and it’s the kind of thing that separates SkEye from the more beginner-focused options on this list. A Pro version is also available for users who want access to the complete NGC and IC catalogs, custom catalog import, and a larger star database drawn from the Tycho2 catalog. All core features in the free version are available without any paywalls, which is a refreshing change from many apps in this category.
[Related Reading: How to Find the Best Locations in Your Area for Shooting in the Night Sky]
Best App For Sun, Moon, & Milky Way Tracking
What if you don’t need to track individual stars or constellations, but instead you want to track the sun, moon, and the Milky Way core? There are other apps for that, and we cover them in this article here. The simple answer is to get an app such as Sun Surveyor, my personal favorite, or another popular one, PhotoPills. Both are purpose-built for photographers and offer detailed planning tools including AR horizon previews, golden hour and blue hour timers, and Milky Way position forecasts tied to your specific location and date.
Frequently Asked Questions About Stargazing Apps
What is the best free stargazing app for beginners?
SkyView is probably the best starting point for beginners. It has a clean interface, works offline, and requires nothing more than pointing your phone at the sky to identify stars, planets, and constellations. The free version covers everything most casual stargazers will ever need.
Do star tracker apps work without an internet connection?
Most do, at least for core functionality. SkyView is specifically noted for its offline capability, which makes it ideal for remote dark-sky locations where cell service may be limited. Apps like SkEye also work offline, though some features such as comet data updates may require a connection.
Are these star tracker apps available for both Android and iPhone?
Most of the apps on this list are available on both platforms. SkyView, Star Chart, Star Rover, and SkyWiki all have versions for Android and iOS. SkEye is currently Android-only, so iPhone users will want to consider the other options or look at alternatives like Sky Map or Star Walk 2.
Can I use a stargazing app to help with astrophotography planning?
Star tracker apps are useful for identifying objects and understanding the sky layout, but dedicated photography planning apps will serve you better for actual shoot planning. Sun Surveyor and PhotoPills are both designed with photographers in mind, offering tools for golden hour timing, Milky Way positioning, and augmented reality horizon previews tied to specific dates and locations.
What does a star tracker app actually do?
A star tracker app uses your phone’s GPS, compass, and gyroscope to map the sky relative to your position in real time. When you point your phone at any part of the sky, the app overlays a star map showing what’s there, including star names, constellation lines, planet positions, and satellite paths. Some apps also include a time machine feature that lets you simulate what the sky looked like in the past or will look like in the future.
Conclusion
Whether you’re stepping outside for a quick look at the night sky or planning a dedicated astrophotography session, having one of these apps on your phone makes the experience far more rewarding. We know there are several other great options out there that we didn’t include. What are some other apps you use to explore the stars and planets above us? What are your favorite features from those apps? Let us know in the comments below!
