PoleScope AR vs APOD Explorer

PoleScope AR turns your iPhone into a polar-alignment scope for your telescope — and a beautiful almanac of the night sky's culture. It works 100% offline and makes zero network requests. — POLAR ALIGNMENT, IN AR — Point your phone at the sky and PoleScope AR overlays the exact position of the celestial pole using ARKit — no need to see Polaris, no compass calibration. Get your equatorial mount roughly aligned in seconds, then refine with the built-in drift-alignment helper for imaging-grade precision. — PLAN YOUR NIGHT — A one-tap observing planner ranks tonight's best deep-sky objects for your location, with altitude and magnitude. A coarse Bortle light-pollution estimate helps you judge the sky. — EXPLORE THE SKY ATLAS — Pan a live star map of bright stars, constellation lines, planets and deep-sky objects. Tap any object to see its data. — TODAY: THE SKY'S CULTURE — A daily card brings the 24 solar terms, traditional festivals, a poetic "star journal," and a situation-drama for your zodiac sign. — YOUR BIRTHDAY SKY — See the night sky exactly as it appeared at the moment and place you were born, and discover the lunar mansion the Sun was passing through that day. — POLESCOPE PRO (one-time unlock) — A single, non-subscription purchase unlocks the premium star-culture library: constellation and 28-lunar-mansion mythology, NASA / Hubble / Spitzer hero photos of famous stars, the full situation-drama theater, and high-resolution birthday-poster export & sharing. The entire alignment tool stays free forever. Purchases restore on all your devices. — PRIVACY — No accounts, no tracking, no analytics, no third-party SDKs. Your location is used only on-device for astronomical math and never leaves your phone. Clear skies!

Every day, NASA publishes a new astronomy picture or video, with an explanation written by a professional astronomer. APOD Explorer brings it to you with an experience built for exploring the universe, not just looking at it. THE FULL ARCHIVE SINCE 1995 Over 11,000 photos and videos, from the very first APOD to today. Full-text search across titles and explanations, curated tag collections (galaxies, nebulae, eclipses, Earth from space, and many more), and an "On This Day" section showing what was published on this date across the years. READINGS TAILORED TO YOU, ON DEVICE With Apple Intelligence, every explanation can be generated at different reading levels: quick, general, for kids, or for experts. NASA's original explanation can also be translated right on your device — nothing is sent to any server. FAVORITES THAT SYNC Save the photos you love and access them from any of your devices through iCloud. No one else can see them. WIDGETS AND LOCK SCREEN Two widgets — "Picture of the Day" and "Today's Sky" — that refresh themselves every morning, on the Lock Screen too. SHARE WHAT YOU DISCOVER Share the photo or, when the day's APOD is a video, a poster generated from it, straight from the detail view or from the widgets extension. NO ACCOUNTS, NO ADS, NO TRACKING APOD Explorer doesn't require sign-up and doesn't show ads. If you enjoy the app, you can leave a voluntary tip from Settings — a gesture of support that never unlocks features. A daily window into the universe, with NASA's complete archive always in your pocket.