맞추다 is a free Android app that falls under the Education & Reference category. It is developed by Machuda, and it focuses on helping users pass various certification exams, including electrician certification exams, Korean history proficiency tests, and cooking certifications for Korean, Western, Japanese, Chinese, and pufferfish cuisine, as well as patisserie and bakery certifications, beautician certifications, forklift driver certifications, excavator operator certifications, information processing certifications, and computer proficiency certifications.

With 맞추다, users can create personalized problem sets based on their daily goals. The app also provides detailed explanations for 17 years of electrician certification exams and 16 rounds of Korean history proficiency tests. Additionally, 맞추다 saves users time by instantly scoring 100 questions and generating review questions.

The app also has unique learning methods, such as post-management and repeated learning through a cycle of problem-solving, vulnerability identification, problem recommendation, and problem-solving, as well as three-step learning from basic to advanced levels through past problem-solving, incorrect problem-solving, and recommended problem-solving.