● Provides the latest past questions for computer proficiency certification
- Perfectly prepare for new types of problems through past questions updated every year
- Contains own problems reconstructed based on actual test taker questions

● The first computer proficiency problem-solving app, provides explanation lectures
- Includes explanation lectures directly from the author of the basics of computer proficiency
- Includes meticulous and clean problem solutions
- For important problems, complete concept understanding is possible through video lectures

● Prepare for the exam without gaps through incorrect questions and repeated learning
- Automatically classifies incorrect questions during learning as incorrect questions
- Induces natural repeated learning for incorrect questions
- Problems that you want to remember while solving can be classified as important questions