Account cancellation refers to the cancellation of accounts that are no longer used in the future. The most common APP software cancellation rules: Jinduoduo "can not be canceled"; fast hand need to prove that "the phone is your"; Pepper reply to the cancellation requirements need to provide document information; microblogging cancellation need to meet the 7 requirements; QQ cancellation need to ensure that no account risk and Unbind from the third-party platform.

For enterprises, users are the embodiment of the value of their APP, so much so that some enterprises even use the value of the user multiplied by the number of users to calculate the valuation, and the user's cancellation of the account means that the value of the APP has been reduced. Big data is increasingly becoming the wealth of the enterprise, and the user is the APP big data provider, the user logout will lose the data provider, affecting the value of its big data.