at a messaging system, receiving, from a third party app executing at a client computer system, a request to evaluate stated age information associated with a user profile stored by the messaging system;

at the messaging system, determining a minimum age value for the third party app;

deriving the stated age information from the user profile stored by the messaging system, wherein the request from the third party app does not include the stated age information;

based on the stated age information associated with the user profile and the minimum age value, generating a response value;

communicating the response value from the messaging system to the third party app, the messaging system and the third party app provided by different entities;

detecting a change to a date of birth information associated with the user profile subsequent to the request to login a user into the third party app using credentials stored in the user profile stored by the messaging system;

subsequent to the detecting of the change to the date of birth, causing logging out of the user from the third party app resulting in inaccessibility of one or more features of the third party app;

detecting a new request to change the date of birth information;

determining that the date of birth information has been previously changed; and

denying the new request to change the date of birth information.