Many users say that after choosing a seven-day free membership trial, they received no reminder and were charged several hundred yuan for an annual membership.
One university student was charged more than 500 yuan without knowing it. Although the student successfully received a refund, they decided to uninstall the app and stop using it.
Many users have also said that the free version of Duolingo now has more and more ads. An ad appears after each unit, affecting the learning experience.
In response, a lawyer said that free trials combined with automatic renewal are not illegal in themselves, but software companies must remind users in advance.
According to regulations, during the five days before a charge is made, the platform should clearly inform consumers by text message or push notification, and it must provide a simple and convenient way to cancel.