With the move, the firm also rebranded its name as Onion Academy, which the company claimed will involve more subjects for the primary to high school period in the next step.

"No matter what the subject is, behind the firm is a product and solution that is powered by artificial intelligence and human machine interactive learning," said Yang Linfeng, CEO of Onion Academy.

"The new upgrading is just a starting point. We will enable more teachers and students to promote education equality," he added.

By December, the online education startup had over 30 million students and 950,000 teachers across China.