# Billing

> Your Aula plan and how to change it.

**Billing** is for owners and admins. It shows your current plan, Free or Pro, and what each includes.

| | Free | Pro |
| --- | --- | --- |
| Lesson types | 2, plus a trial lesson | Unlimited |
| Active students | Up to 10 | Unlimited |
| Teacher seats | 1 | 5 |
| Your own domain | No | Yes |
| Aula footer on your site, with its Help link to the student guide | Yes | No |

Choose **Choose** next to Pro to upgrade. You pay through a secure checkout, and the plan changes once the payment is confirmed. If you cancel the checkout, nothing changes. **Manage billing** opens the billing portal for your subscription.

If paid plans are not available yet on your installation, the page says so and your site stays on Free.

This page is about your Aula plan only. Payments for lessons go directly between you and your students; see [Lessons](/docs/teacher/bookings).