LeetCode vs Astralis

One LeetCode a day keeps your reasoning in play. Introducing LeetCode for iOS and iPadOS. Enjoy LeetCoding right at your fingertips — jump in for quick practice, browse your collections, and stay on top of important events and progress. With LeetCode in the palm of your hand, you can easily: • Search and discover the latest company questions. • View and quickly practice your favorite challenges right in the palm of your hand. • Manage your lists or add to your wishlist to practice later. • Keep track of your personal progress with a rich profile view and widgets. • Stay notified and keep your streak alive — level up with new challenges and quests every day. • Register for contests and sync them to your calendar. Live Activities keep you updated on contest progress — so you never miss a moment. • And more content and features coming every month… Terms of Services: https://leetcode.com/terms/ Privacy Policy: https://leetcode.com/privacy/

Astralis turns your phone into a window on the night sky. Point your phone up and Look Up instantly reveals whatever bright object you're facing — planet, star, or the Moon — rendered as a real, lit 3D sphere with NASA-derived textures, at its true current phase. Save any of them as a full-screen wallpaper. TONIGHT A sunset-to-sunrise timeline of everything happening in the sky where you are: moonrise and moonset, planet rise/set times, a stargazing score based on real cloud cover and light pollution, upcoming rocket launches, and visible ISS passes computed with a real orbital propagator — not a canned schedule. COMPASS An AR-style compass that points you straight at any visible planet, star, or the ISS, live. SOLAR SYSTEM An animated 3D orrery — all eight planets, real relative orbital speeds, real NASA-derived surface textures, starting from today's actual planetary configuration. Tap any planet for its facts. Pinch to zoom, drag to orbit. EXPLORE A deep-sky catalog of 30 galaxies, nebulae, and star clusters — real astrophotography for every object, live altitude and rise/set times for your location. Built with real astronomy: positions are computed locally from NASA JPL orbital elements, not fetched from a third-party ephemeris service. No account required. No ads. No tracking.