Our month to month subscriptions if you haven't subscribed to an annual plan are month to month cancel anytime.
Do note when you cancel your subscription, the cancellation will come into effect at the end of your billing period. Any unused word quota will be lost when this happens.
Cancelling your subscription will still give you access to any any completed content pieces, and any that are In Progress will still be completed for you.
For annual plans, you wouldn't be able to cancel and receive a pro rated credit for any unused time on your subscription. These would be one year commitments and cannot be cancelled at anytime.