If you no longer need the services of Brainscape Pro, you can easily cancel your subscription so your credit card does not get billed again going forward. You will continue to enjoy the features of Brainscape Pro until the currently paid billing period expires.
On the Web
If you originally purchased your subscription using the Brainscape website, then you can simply go to My Account --> Subscriptions to see or modify your current plan. There is a "click to cancel" button if you would like to opt out of Brainscape Pro going forward.
In the iOS or Android App
If you originally purchased your subscription inside the Brainscape mobile app, you should ideally cancel your subscription in the same place. Simply open the app, make sure you're logged into your account, and go to your Account Settings, where there is an option for "Brainscape Pro Subscription". On that page you can choose "Modify Subscription", and it will take you to the appropriate page in your Apple settings where you can cancel your Brainscape plan.
In an iPhone/iPad, you can also just go to your main Settings app, choose iTunes & App Stores, tap your Apple ID, and then choose Subscriptions on the subsequent screen.
Regardless of your cancelation method, we're sad to see you go, and we hope you can make use of Brainscape Pro again in the future!