For Patreon Follow steps below
1. Open Patreon and tap the “Account” icon from the bottom menu of the app homepage.
2. Tap on your profile name, where it lists the number of memberships.
3. Select the pencil icon to open the edit patronage page.
4. Tap the “Edit or Cancel Membership” link on the checkout page.
5. Select the option to cancel and tap “Cancel your membership” to confirm.
For Keyhub: Keys are a one-off purchase, there is no need for cancellation since keys do not automatically renew.