In the Alive app, go to the Profile page, scroll down, and select Subscription. Here you’ll see where your subscription is managed—the Alive website, App Store, or Google Play Store. Tap Manage Plan to be redirected to that platform.
If your subscription is managed through the Alive website, log in to your account and go to the My Account page. Find the blue card displaying your current plan, where you can manage your subscription and switch to the other billing option.
If you subscribed through the App Store or Google Play Store, you will be able to manage your plan through your app store subscriptions.