A free program for Android, by Cerego Japan Inc..

iKnow is a personalised language learning tool based on advanced learning algorithms that allow you to learn faster and more efficiently.

iKnow allows you to learn Japanese, Chinese, and English. The Chinese core 2000 covers the 2,000 most often used Chinese terms, whereas the Japanese core 6000 contains the 6,000 most frequently used Japanese words. All words have sample sentences, and the audio is also available.

The app automatically syncs your study progress with your PC account, so you can study in the way that best suits your needs and lifestyle.

The app allows you to review your targets and performance, and it manages your study for you.

The app is designed to be used with the iKnow! website (iknow.jp), which is where you can study.