The rivalry between China’s top online learning apps has become even more intense this year because of the COVID-19 pandemic. The latest company to score a significant funding round is Zuoyebang, which announced today (link in Chinese) that it has raised a $1.6 billion Series E+ from investors including Alibaba Group. Other participants included returning investors Tiger Global Management, SoftBank Vision Fund, Sequoia Capital China and FountainVest Partners. Zuoyebang’s latest announcement comes just six months after it announced a $750 million Series E led by Tiger Global and FountainVest.