Experts say lessons marketed by digital education platforms like Byju’s and Yuanfudao are more an innovation in test-prep delivery than in learning outcomes

Experts say lessons marketed by digital education platforms like Byju’s and Yuanfudao are more an innovation in test-prep delivery than in learning outcomes  —  Investors have poured billions of dollars into digital education platforms like Byju’s and Yuanfudao.  But are students learning anything?