Membership and the free tier
When the free trial charges me
The trial is seven days with full access. Cancel in Apple’s subscription settings at least 24 hours before it ends and nothing is charged; the free tier keeps your plan going.
If you do not cancel, the plan you picked begins when the seven days end. Apple manages the trial, so its dates are in iPhone Settings under your name, Subscriptions.
iPhone Settings, your name, Subscriptions, Why Not.