SpaceNerd vs AuraLunis

SpaceNerd helps you recognize what you’re pointing at in the sky and learn to navigate by stars, planets, and deep-sky objects — using your iPhone’s motion sensors and approximate location. Modes • What (Identity): aim at a star or planet to identify likely matches. • Where (Guidance): pick a star, planet, or deep-sky object and get live azimuth/altitude guidance to find it. If the object is not in the built-in catalog, SpaceNerd can look it up through SIMBAD. • Const (Constellations): search a constellation and use a guide star to point at it. • Game: race to find a target star — timer stops when you lock on the star. Tip: Tap “?” in the top-right corner anytime for quick help and instructions. How it works SpaceNerd uses the device’s motion sensors and your approximate location to estimate where you’re pointing, then compares that direction to a catalog of stars, planets, constellations, and selected online astronomical object data. It doesn’t require stars to be visible on the camera image — so it can still be useful in daylight, through thin clouds, or even indoors for learning and practice. For best accuracy, move slowly and use it outdoors with a clear view of the sky. Privacy No account required. No ads. No analytics or tracking. Location is used on-device to compute sky positions and is not stored or shared. Data sources Planet positions are based on NASA/JPL ephemerides. The built-in star catalog was compiled offline using SIMBAD for RA/Dec references and Stellarium for constellation asterisms. Expanded Where searches may query SIMBAD, operated by CDS, for astronomical object lookup. Wikipedia may be opened when you tap “Open Wikipedia.”

AuraLunis turns the night sky into a living, personal experience. Explore stars, planets, constellations, satellites, meteor activity, and deep-sky objects through a beautifully rendered, sensor-aligned planetarium designed to move with your device. See what is above your location, find celestial targets, follow live orbital telemetry, and learn the sky through guided lessons and immersive visual tools. FEATURES • Sky Lens — explore a live, sensor-aligned map of the sky • Manual Sky Map — browse the heavens without device motion • Find Mode — locate visible planets and celestial targets • Tonight Score — see current stargazing conditions at a glance • Orbital Alignment — track satellites and space objects using live positioning data • Celestial Calendar — browse upcoming meteor showers, eclipses, conjunctions, and other events • Birth Sky — recreate the sky from the date, time, and location of your birth • Astro Weather — evaluate clouds, Moon brightness, visibility, and observing conditions • Learn — explore stars, planets, nebulae, galaxies, the Milky Way, and guided observing lessons • Vault — save celestial discoveries, notes, captures, and learning progress • Share Your Sky — create elegant, shareable records of your observations AURALUNIS LIFETIME Unlock the complete AuraLunis experience with a one-time purchase. No subscription and no recurring charges. AuraLunis Lifetime adds premium Sky Lens tools and visual treatments, Birth Sky, Astro Weather, expanded learning content, advanced celestial planning and calendar details, premium sharing features, and additional experiences throughout the app. Existing eligible legacy subscribers continue to receive the Premium access associated with their previous purchase. Restore Purchases is available for previously purchased access. AuraLunis does not use the camera for augmented reality. Sky Lens is a rendered planetarium that uses location, compass, and device-motion data to align the view with the sky. Your sky. Your story. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/