Every meadow starts with a free week of the whole app, with nothing held back. After that, Meadow is a subscription billed through Apple, which means the useful settings live in your iPhone rather than inside the app.
The first article covers what the plans cost, how the trial converts, and where to find your renewal date. The second walks through cancelling, changing plans, restoring purchases on a new phone, and asking Apple for a refund. Because Apple handles the billing, we cannot cancel or refund on your behalf, but every step takes under a minute and we have written them out plainly.
One thing worth saying up front: if you stop paying, your meadow stays. Flowers do not wilt and your day count does not reset. Everything is kept on your phone, and it will all be waiting if you come back. Family Sharing is not supported at the moment, so each person needs their own subscription and their own meadow.