WordBit is an innovative language learning app that has been recently launched for Korean users. The app uses your lock screen as a learning tool and helps you learn Japanese words and phrases automatically. With over 50 million users worldwide, WordBit has been the number one education app in several countries, including the United States and Europe. The app offers a unique way to learn Japanese by using your phone's lock screen.

The app's most significant feature is its innovative learning method, which allows you to learn Japanese words and phrases automatically and unconsciously. When you check your phone, the app uses this opportunity to teach you Japanese words and phrases. The app provides comprehensive content that includes over 30,000 words, idioms, and sentences, and it is suitable for beginners to advanced learners. The app also offers a vast range of categories, including business, college students, and dating, and provides a personalized classification system to make learning more comfortable and more efficient.