The night sky has never been more accessible. A decade ago, identifying a star meant consulting a printed atlas or memorizing constellation patterns over years of practice. Today you can point a phone at any part of the sky and know exactly what you're looking at in seconds.
The apps below are all free, all genuinely good, and each one does something different well. Whether you're a first-time stargazer, a gift-giver looking to explore the sky alongside a NamedLight star registration, or just someone who wants to know what that bright object on the horizon is — one of these will do what you need.
Stellarium Mobile — Best Overall
Stellarium is the gold standard of free stargazing apps. It's the mobile version of a desktop planetarium program that's been used by amateur and professional astronomers for decades, and the quality shows.
Point your phone at the sky and Stellarium overlays a real-time star map using your device's GPS and compass. Stars, planets, constellations, nebulae, and satellites are all labeled. The database is comprehensive — you can search by name, by catalog designation, or by coordinates, and the depth of information available on any given object is genuinely impressive.
The free version covers everything most people will ever need. A paid upgrade adds additional features for serious observers, but it's entirely optional.
Best for: Serious casual astronomy, deep sky exploration, overall accuracy.
Sky Map (Google) — Best for Simplicity
Sky Map is Google's stargazing app and about as simple as it gets. Open it, point your phone at the sky, and it shows you what's there. No setup, no learning curve, no paid features. It's not as data-rich as Stellarium, but for someone who just wants to know what that bright object in the southwest is, it answers the question immediately.
Sky Map is also entirely free with no upgrade path — what you see is what you get. For beginners and casual users, that's a feature rather than a limitation.
Best for: Absolute beginners, quick identification, zero commitment.
SkySafari — Best for Depth Without Complexity
SkySafari sits between Stellarium's depth and Sky Map's simplicity. The free version includes a solid star database and a clean interface that makes it easy to explore the sky without feeling overwhelmed. It handles both casual browsing and more deliberate observation sessions well.
Best for: Mid-level users, clean interface, a balance of detail and usability.
Star Walk 2 — Best Looking
Star Walk 2 is the most visually polished stargazing app available. The interface is beautiful — rich star fields, smooth animations, elegant typography — and it makes casual sky exploration genuinely enjoyable. It's less technical than Stellarium, but for someone who wants to spend an evening getting familiar with the sky in a low-pressure way, it's the most pleasant experience of the bunch.
The free version includes occasional ads and a limited feature set. The paid upgrade is reasonable if you find yourself using it regularly.
Best for: Casual exploration, visual appeal, introducing newcomers to the night sky.
ISS Detector — Best for Satellite Tracking
Not strictly a stargazing app, but worth including: ISS Detector tracks the International Space Station and other satellites in real time, alerting you when a visible pass is coming over your location. Watching the ISS cross the sky — a steady, bright point moving faster than any star — is one of the more quietly astonishing things you can see without a telescope. It passes over most locations multiple times a week.
Best for: Satellite passes, ISS tracking, something different to show people.
The Sky Is Better When Something in It Is Yours
Any of these apps will make the night sky more accessible. But there's a different quality to looking up when you know that one of those points of light has your name on it — or someone else's.
At NamedLight, you can name a real catalogued star from the HYG astronomical database. Every registration comes with a permanent registry page, a printed certificate, and a star that's recorded in your name for as long as the registry exists. It's one of the more unusual gifts you can give — or keep for yourself.