Solar System Trainer

Planet Classifier is an offline educational reference for students, teachers, and space enthusiasts who want a clean way to explore and classify objects in our Solar System.

Browse a curated catalog of 25 space objects — planets, moons, dwarf planets, asteroids, and comets — with clear scientific profiles, key parameters, and educational facts. Everything works without an internet connection.

WHAT YOU CAN DO

• Explore the Catalog — search by name, filter by category, composition, and orbit type, and sort by size or distance from the Sun • Read Object Profiles — view diameter, orbit, composition, gravity, discovery year, classification details, and fun facts • Save Favorites — keep the objects you want to revisit • Compare Objects — select up to 3 objects and compare key metrics side by side • Take the Knowledge Quiz — test what you learned with quick questions from the catalog • Learn Categories — understand how planets, moons, dwarf planets, asteroids, and comets are classified • Add Personal Notes — write study notes on any object, stored locally on your device • Customize Your Experience — set a nickname, choose your study level, and pick your learning focus during onboarding

BUILT FOR LEARNING

Planet Classifier is designed as a polished scientific dashboard with a dark cosmic visual style. Object of the Day, educational tips, and recently viewed objects help you discover something new every time you open the app.

Whether you are preparing for class, teaching astronomy basics, or simply curious about space, Planet Classifier gives you a structured offline reference you can trust.

FEATURES

• 100% offline — no account, no sign-in, no ads • 25 curated space objects • Search, filter, and sort tools • Favorites and comparison cards • Local knowledge quiz with progress tracking • Personal study notes • Beginner, Student, Teacher, and Enthusiast study levels

DISCLAIMER

Planet Classifier is an offline educational reference. Some values are simplified for learning and may be rounded. The app does not provide real-time scientific updates.