How does per-app (per-instance) billing work?

Atlas bills per instance, and each app you build gets its own instance. That means:

• One app can be on Free while another is on Pro or Enterprise.

• MAU limits and usage are counted independently per instance.

• Keys, users, settings and billing are all scoped to the instance, so there's no bleed between apps.

This lets you keep a side project on Free indefinitely while your production app runs on a paid plan. Manage each instance's plan from its own Billing section. See the billing docs.