1등급 사과 - 지구과학 is an educational application designed to assist high school students in their earth science studies. It provides various solutions to help improve academic performance through chatbot and digital textbook content.

The key features and services of the application include a chatbot service that offers keyword-based explanations with text and image materials, digital textbook access to core concepts, mock test analysis service to identify weaknesses, OX quiz service for focused practice, simulated exam service to assess real-world skills, and tutorial to guide users through the app's functionalities. It also offers learning and chatting passes for all users, with unrestricted content access for 1등급 사과 free members.