Wink has the highest member satisfaction and retention rate among all learning services, and cancellations are very rare. However, if you have to stop the program mid-term for an unavoidable reason, a cancellation fee for the promised contract period and for the free workbooks you received will be charged, similar to a contract for a phone or a water purifier. Compared to other learning services that require a device purchase and a contract, Wink operates with the most affordable cancellation policy. The fee varies depending on the number of months the member has used the service, so you can get an exact amount by asking your managing teacher.