To cancel your subscription to the Brainwave3D App on your iPhone, follow these steps:
Open Settings:
Tap the gear icon on your home screen to open Settings.
View Apple ID:
Tap on your name at the top to open Apple ID settings.
Manage Subscriptions:
Tap on "Subscriptions."
Select Brainwave3D App:
Choose the subscription for the Brainwave3D App that you want to cancel.
Cancel Subscription:
Tap on "Cancel Subscription" and confirm the cancellation.
Important Notes:
After canceling the subscription, you can continue to use the content until the end of the billing period.
The cancellation must be done before the next billing period to avoid further charges.