iPhone & iPad Astronomy Software
Your iPhone and iPad aren't just accessories to your Mac setup — they're essential field tools. Every iOS and iPadOS astronomy app worth using, organized by workflow.
Last verified: March 2026
Planetarium & Sky Maps
Interactive star charts and sky simulation apps for iPhone and iPad. Point your device at the sky to identify stars, planets, and constellations in real time, or plan your next observing session.
SkySafari 8
Recommended FreeThe definitive mobile planetarium. Deep catalogs, telescope control in Plus and Pro tiers, observing lists, and AR sky overlay. The v8 redesign adds OneSky social features.
Stellarium Mobile
Recommended PaidMobile version of the beloved open-source desktop planetarium. Faithful rendering with a massive object database.
Sky Tonight
FreeClean, modern planetarium with guided sky tours and event calendar. Good for beginners.
Night Sky
PaidApple Design Award winner with beautiful AR overlays. Apple Vision Pro support. Night Sky+ adds advanced features.
Star Walk 2
FreeAugmented reality planetarium with clean visuals. Point and identify with optional deep-sky IAP packs.
Sky Guide
PaidCurated planetarium with editorial articles by Dr. Jenifer Millard. Beautiful design with time-travel feature.
Luminos
PaidPro-level planetarium that has never required a paid major-version upgrade. One purchase, always updated.
Celestron SkyPortal
FreeCelestron's planetarium with 120,000+ objects. Controls Celestron WiFi-equipped telescopes.
Our Galaxy
Free3D model of the Milky Way. Explore our galaxy from any vantage point.
Moon Globe HD
PaidDetailed 3D moon atlas with landing sites, crater names, and libration visualization.
Weather & Observing Conditions
Weather and atmospheric forecast apps built for astronomers. Check cloud cover, seeing, transparency, and aurora activity before heading out to observe or image.
Astrospheric
Recommended FreeBest astronomy-specific weather forecast. 84-hour predictions for cloud cover, seeing, transparency, and wildfire smoke integration.
Clear Outside
FreeSeven-day hourly forecasts with traffic-light color coding for cloud, seeing, and transparency. Works worldwide.
Xasteria
FreeFree worldwide astronomy weather via 7Timer forecast data. Simple interface.
Scope Nights
PaidDedicated astronomy weather app with forecasts tailored to telescope use.
Good to Stargaze
FreeSimple go/no-go forecast for tonight's stargazing conditions.
My Aurora Forecast
FreeAurora probability and Kp index forecasts with push notifications for geomagnetic storms.
Dark Sky & Light Pollution
Find dark observing sites near you with light pollution maps and Bortle scale overlays. Essential for planning trips to locations with the best sky conditions.
Dark Sky Finder
Recommended Paid1,000+ curated dark sites with user reviews, Clear Sky Charts integration, and driving directions. The best way to find a dark site.
Light Pollution Map
FreeInteractive light pollution map using VIIRS satellite data with Bortle class overlay.
Smart Telescope & Hardware Companions
Control apps for smart telescopes and astronomy hardware. Manage capture sequences, autoguiding, plate solving, and live stacking directly from your iPhone or iPad.
ASIAIR
Recommended FreeZWO's all-in-one imaging controller. Replaces a laptop for capture, guiding, plate solving, and sequencing with ASIAIR hardware.
Seestar
FreeCompanion app for ZWO's Seestar smart telescopes (S30, S30 Pro, S50). One-tap target finding and automated imaging.
Unistellar
FreeControls Unistellar Odyssey, eVscope, and eQuinox smart telescopes. Enhanced vision stacking and citizen science programs.
Singularity (Vaonis)
FreeCompanion app for Vaonis smart telescopes (Vespera II, Vespera Pro, Hestia). Mosaic mode and observation automation.
DWARF Lab
FreeControls DWARF 3 and DWARF Mini smart telescopes. Automated target acquisition and stacking.
Celestron Origin
FreeCompanion app for Celestron Origin and Origin Mark II smart telescopes.
ASI Studio
FreeZWO's camera control suite. Direct camera control and ASILive stacking from your device.
Astrophotography & Camera
Specialized camera and processing apps for capturing and refining astronomical images on iOS. From long-exposure star trails to planetary processing and session planning.
NightCap Camera
Recommended PaidThe best iOS astrophotography camera app. ISO Boost for 4x higher sensitivity, four dedicated astro modes, long exposure, star trails, and meteor detection.
AstroShader
FreeCapture, align, stack, and edit astrophotos entirely on-device. Saves 16-bit TIFF files.
PhotoPills
Recommended PaidThe photographer's planning powerhouse. Night AR mode, Milky Way planner, blue hour/golden hour, and augmented reality for shot planning.
The Photographer's Ephemeris
PaidSun, moon, and Milky Way position planning for landscape and nightscape photography.
SpiralCam
FreeSimple astrophotography capture app with manual controls and timer.
Satellite & ISS Tracking
Track the International Space Station, Starlink satellites, and other spacecraft in real time. Get pass predictions, visibility alerts, and AR sky overlays.
Space Station Passes
Recommended FreeClean, ad-free ISS and satellite pass predictions. The best free satellite tracking app.
ISS Detector
FreeSatellite pass predictions with AR sky view for locating passes. IAP adds additional satellite catalogs.
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Planning & Utilities
Observing session planners, polar alignment aids, and astronomy calculators for iPhone and iPad. Useful tools for preparing and executing your time at the eyepiece or camera.
PS Align Pro
Recommended FreePolar alignment utility using phone sensors. Quick and accurate polar alignment aid for equatorial mounts.
Observer Pro
PaidFull-featured observation planner and logger with equipment profiles and target recommendations.
astronomy.tools
FreeFOV calculator, equipment comparison, and planning tools in the browser. Mobile-friendly.
Telescopius
FreeTarget finder, telescope simulator, mosaic planner, and session planning. The web's best planning tool.
Astro Locator
PaidAR-based tool to help locate deep-sky objects at the eyepiece using phone orientation.
MeteorActive
FreeMeteor shower calendar with peak predictions, radiant position, and hourly rate forecasts.
Double Stars
PaidCatalog and observation logger for double star observers.
Gas Giants
FreeJupiter and Saturn moon position calculator. Shows moon identification and transit/shadow events.
Education & Reference
Educational apps and reference tools for learning about the solar system, exoplanets, space missions, and astronomical science.
NASA
FreeOfficial NASA app with mission updates, live streams, image galleries, and space news.
Exoplanet
FreeInteractive catalog of confirmed exoplanets updated daily. 3D visualization of planetary systems.
Solar Walk 2
PaidInteractive 3D solar system model with detailed planet and spacecraft information.