원미닛 - One Minute is an educational app designed for iPhone users that focuses on enhancing mathematical skills through engaging exercises. The app offers a variety of operations, including addition, subtraction, multiplication, and division, allowing users to practice with numbers ranging from one to four digits. It also features a comparison tool for fractions, sums, products, and ratios, catering to different learning needs and preferences.

The app is structured with four levels of difficulty (Lv.1 to Lv.4), making it suitable for learners at various stages. Users can visualize their progress with charts and track their study days using a calendar feature. This comprehensive approach not only aids in mastering fundamental math concepts but also keeps users motivated through visual feedback.