The price is shown in the app and in Google Play before you confirm. Taxes are included where applicable.
New subscribers get the first 3 months free. If you don't cancel before the free period ends, the subscription starts and is charged to your Google Play account.
The subscription renews automatically at the end of each period unless you cancel at least 24 hours before.
Cancel any time in Google Play → Payments and subscriptions → Subscriptions. You keep access until the end of the period you paid for.
Payments are handled by Google Play and follow its refund policy, as well as your rights under consumer law.
If the price changes, you'll be told in advance and can cancel before it applies.
A free preview of the Family plan can be switched on from the plan page. It ends when the store version comes out.