From the app’s Settings screen, tap “Premium Service”.
When you subscribe to the Premium plan, ads will no longer be shown and you can use the app without ads during your subscription period.
My Calendar Premium is offered as a Google Play subscription (recurring purchase) and will automatically renew until you cancel it.
If you previously purchased the one-time “Remove ads” option in an earlier version of the app, that purchase remains valid.
You can continue to use the app without ads at no additional cost, even without a subscription.
If ads appear again after changing devices or reinstalling the app, open the Settings screen and tap the “Restore Subscription” button.
As long as you use the same Google account, the app will return to an ad-free state without any additional payment.