A. 1. Access the subscription settings: Open the Dipsea app, go to your account settings, and look for subscription management options. Follow the prompts to cancel your free trial. 2. Use the Google Play Store: Open the Google Play Store, tap on your profile icon, select 'Payments & subscriptions', then 'Subscriptions'. Find Dipsea and select 'Cancel subscription'.

B. 3. Set a reminder: If you want to cancel before the trial ends, set a reminder on your phone a few days before the trial expiration date to ensure you don’t forget.