Yes, the Amazon Seller app collects personal data as part of its functionality, including information related to your account, transaction history, and interactions within the app. Users should review the app's privacy policy for details on data usage.

The Amazon Seller app does not support full offline functionality; however, some features may be accessible without an internet connection, but most capabilities require a live connection to work effectively.

To cancel your Amazon Seller subscription, you can log into your Amazon Seller Central account and follow the instructions for managing your account settings, including the cancellation of your selling plan.

There is no cost specifically for the Amazon Seller app itself, but sellers may need to subscribe to different selling plans on Amazon, which can range from a monthly fee for the Professional plan to a pay-per-item fee for the Individual plan.