How can I cancel my subscription?
You can cancel your subscription on the SuperMemo.com website. To do this, please log in to the website and open the "More" panel on the left side. Then go to the "Subscription" tab and end it by clicking the "Cancel" button.
iOS: You must cancel a subscription purchased through an iOS app through Apple's subscription management systems. Here's a link to the instructions on how to do this: https://support.apple.com/en-us/HT202039
Android: To cancel a subscription purchased through an Android app, you must go to the Google Play Store app. After selecting the profile in the upper right corner, go to the "Payments and Subscriptions" tab. Then, in the subscriptions tab, select SuperMemo and press "Cancel Subscription." Here's a link to the instructions on how to do this: https://support.google.com/googleplay/answer/7018481?hl=en&co=GENIE.Platform%3DAndroid
PayPal: An active subscription purchased through PayPal can be canceled in your PayPal account settings by going to the "Payments" tab and selecting "Manage Automatic Payments." Then you need to select SuperMemo and confirm the action. Here's the subscription cancellation instruction: https://www.paypal.com/us/cshelp/article/czym-jest-p%C5%82atno%C5%9B%C4%87-automatyczna-jak-mo%C5%BCna-j%C4%85-zaktualizowa%C4%87-lub-anulowa%C4%87-help240