Re: Ending Subscription through IMDbApp
From the IMDb Help Center Page:
How do I cancel my IMDbPro membership?
To cancel your IMDbPro membership, please visit the Cancel Membership page in the Account Settings section while logged into your IMDbPro membership on your desktop computer. You can also select Cancel located at the bottom of every page while logged into your IMDbPro membership. Note: you cannot manage your IMDbPro account from the IMDbPro app at this time.
