How can I change my subscription period?

You can manage your subscription through Google by following these instructions. However, according to their procedure, a plan can only be upgraded at the end of your current subscription period. Therefore, to upgrade, you'll first need to cancel your existing subscription and then purchase a new one.

After you cancel, your current subscription will stop at the end of the current billing cycle. Then (or sometime before the expiration, if you want to retain continuous access to the app), you can switch to another subscription.

❗ Please also make sure you cancel your current plan at least 24 hours before the next billing period in order to avoid being charged for the renewal.