An automatic move to the Free plan
When the trial ends the school switches to the Free plan by itself: 3 teachers, 3 classes, 3 active assignments and 9 students per class, for good. You keep logging in and using the school exactly as before.
Upgrade whenever you need to
If your school outgrows the Free plan, choose a paid School Plus or School Pro plan for more seats and no ads — pay by card through PayPal, or by invoice or purchase order.