Khan Academy is completely free to use, with no trial period or subscription fees required for access to its educational resources.

While an internet connection is required to access most of Khan Academy's features, users can download certain content for offline use within the app.

You can contact Khan Academy's support team through their website by submitting a help request or by visiting their community forums for feedback and assistance.

Since Khan Academy does not have subscription plans, there is no need to manage or cancel a subscription; users can simply access the platform freely at any time.