Locked subject

Why a subject is locked and how to restore access.

1 min readUpdated June 15, 2026 Reviewed June 15, 2026

A locked subject usually reflects your plan or your billing status. Free and Pro include a subset of subjects; Premium (and Enterprise) unlock everything — see plans and what's included.

See Why is a tutor locked? for the full list of reasons and fixes, and Billing status mismatch if billing looks correct.

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Why is a tutor locked?

Reasons a tutor or subject might be locked and how to unlock it.

Billing status mismatch

Paid but still locked? Reconcile your billing status.

Usage limit reached

What a usage limit means and your options.

Can't sign in? Work through these common fixes.

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