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.
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.
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.
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.
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.
Based on the open-source desktop Stellarium. Shows exactly what you'd see through a real telescope's eyepiece. Less flashy, much more accurate.
Official NASA app with NASA+ streaming, mission updates, 21,000+ images, Artemis and JWST coverage. Strong on NASA-specific events.
Official NASA app for ISS pass prediction. Countdown, 2D/3D map, push notifications. Free and does one thing very well.
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.
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.
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.