We do not offer a free trial on purchases made via the Seeking Alpha App (Via Google/Apple)
For purchases made from the Google Play Store, Google is the billing entity, and they manage all billing/cancellation/refund-related queries. You'll be able to manage your purchases from here.
Apple is the billing entity for subscriptions taken via the App Store, and they manage all billing/cancellation/refund-related queries. You can manage your purchases from here.
Please email us at subscriptions@seekingalpha.com or give us a call at 1-347-509-6837 if you need any help.