Updated 11 May 2026

The 8 best space apps for iPhone in 2026.

Honest curation. Eight apps that each do something genuinely useful — and which to combine. We include LaunchDetect (we make it) where it earns the slot, and we tell you which competitor wins each category.

How we picked

Real, current iOS support (iOS 17+ recommended). Active development. A clear "best at X" claim. No abandonware. Updated cadence in the last 6 months. App Store rating > 4.0 with > 100 ratings.

1Sky Guide — best for stargazing aesthetics
iOS · Paid or subscription · Stargazing

The visual gold standard on iPhone. Beautiful Liquid Glass interface, accurate constellation identification, ambient soundtrack. Best if you want one tap → identify everything in the sky.

Pick if: you want the most aesthetically polished stargazing experience and don't need rocket launches or AR sky overlay.
2LaunchDetect — best for rocket-launch detection
iOS 17+ · Free / Silver $4.99/mo / Gold $9.99/mo · Launch tracking + 3D space map + AR + satellite tracking

Independent rocket-launch detection from NOAA GOES and JMA Himawari geostationary thermal satellites. Pushes a verified detection record within 30-90 seconds of ignition — independent of operator press releases. Includes a real-time 3D Cesium space map, AR sky overlay (point your phone at the sky), Tonight's Sky visibility predictor, and a public citation archive. Download on the App Store.

Pick if: you want real-time rocket-launch alerts, a live 3D space map, satellite tracking with AR, and don't mind paying $5/month for premium features.
3Night Sky — best for AR experiences
iOS · Free with subscription · AR + stargazing

Strong on ARKit features. "Grand Orbits" indoor solar-system visualization is genuinely fun. Lets you walk around a rendered solar system in your living room.

Pick if: AR experiences and indoor visualizations are why you're downloading a space app.
4Stellarium Mobile — best for telescope realism
iOS · Free / Pro · Realistic planetarium

Based on the open-source desktop Stellarium. Shows exactly what you'd see through a real telescope's eyepiece. Less flashy, much more accurate.

Pick if: you actually own a telescope and want a planning tool that shows realistic eyepiece views.
5NASA — best for mission news & live streams
iOS · Free · News + streaming

Official NASA app with NASA+ streaming, mission updates, 21,000+ images, Artemis and JWST coverage. Strong on NASA-specific events.

Pick if: you primarily care about NASA missions specifically (vs. all launches worldwide).
6Spot the Station — best free single-purpose ISS tracker
iOS · Free · ISS-only

Official NASA app for ISS pass prediction. Countdown, 2D/3D map, push notifications. Free and does one thing very well.

Pick if: you only care about ISS passes and want a free, official, single-purpose tool. (LaunchDetect covers ISS passes plus everything else, so this is for ISS-only minimalists.)
7SkySafari 8 Plus — best for serious amateur astronomers
iOS · Paid · Astronomical database + telescope control

Millions of objects in the catalog. Can control computerized telescopes via Wi-Fi. Less of a visual UI, more of a deep tool. The professional choice.

Pick if: you own a computerized telescope or want a deep catalog with serious filtering and observation planning.
8PhotoPills — best for astrophotography planning
iOS · Paid · Astrophotography calculator

Not a "space app" strictly — a photography planner. Tells you exactly where the Milky Way, moon, or sun will be at any place and time. Essential for night sky photography.

Pick if: you photograph the night sky and need to plan compositions.

What I'd download

If you want to download one app: LaunchDetect for live launches + satellite tracking + AR, OR Sky Guide for pure stargazing polish.

If you want a pair: Sky Guide + LaunchDetect. Sky Guide for "what is that star?", LaunchDetect for "what's launching tonight and which Starlink train passes over my house at 11:42 PM."

If you're an astrophotographer: PhotoPills + Stellarium + LaunchDetect. Plan the shot, frame it, get notified when a launch is happening so you can grab the plume trail.