Star Guide vs Scan the Sky

Turn your phone into a real‑time planetarium. Star Guide helps you explore the night sky, identify stars and planets, and plan the best moments to look up—whether you’re stargazing tonight or previewing the sky months from now. Point your device upward to see what’s above you, switch on Augmented Reality (AR) for an immersive sky overlay, and explore celestial objects in 3D. Want to plan ahead? Travel through time to see how the sky changes in the past or future, and preview the view from different locations around the world. Key features • Live star finder & planetarium view Explore the night sky based on your position and direction. • Augmented Reality mode Overlay stars and planets on your camera view for easy identification. • 3D stars & planets Visualize objects in a more immersive way and explore in 3D. • Best viewing time notifications Get alerts for great stargazing moments and upcoming viewing opportunities. • 24‑hour sky motion preview See how a star moves and circles across the sky over a full day. • Past & future sky “time travel” Rewind to previous nights or fast‑forward to plan future observations. • Different locations Change your location to preview the sky from other places—perfect for trips. Great for • Casual stargazing from your backyard • Learning the night sky with an interactive planetarium • Planning the best time to spot planets • Exploring how the sky looks from other cities and countries Permissions (why they may be requested) • Location: improves sky accuracy for your current position • Camera: required for AR mode • Notifications: optional alerts for best viewing times Download Star Guide and start exploring the sky—right from your pocket.

Scan the Sky is your ultimate live cosmic tracking and orbital discovery tool. Whether you are a casual stargazer or an avid astronomer, our real-time atmospheric and celestial data ensures you never miss a moment under the stars. Key Features: -Light Pollution Scouting Map: Tap anywhere on our interactive map to calculate regional skyglow degradation. Find the perfect Class 1 pristine dark sky site with our Bortle scale indicator. -Meteor Shower Index: Get real-time radiant tracking and peak activity alerts for major cosmic streams, from the Perseids to the Geminids. -ISS Live Tracking: Our orbital matrix tells you exactly when the International Space Station is flying overhead, including altitude, speed, and visibility flags. -Seasonal Constellation Guide: Beautiful vector mapping and historical lore for constellations tailored exactly to your GPS coordinates and the current season. -Space Weather Matrix: Live NOAA data streams alert you to active solar storms and geomagnetic Kp-index spikes so you can chase the aurora. -Live Cloud Cover & Lunar Projections: Open-Meteo forecasts combined with exact moon phase calculations ensure you only head out when the canopy is crystal clear.