You can choose to subscribe to a monthly or an annual SerpWatch plan.
In each case, the billing cycle starts on the subscribing date and lasts until the same date next month (monthly subscription) or the same date next year (annual subscription).
If you decide on the annual subscription, you will get a 10% discount on the cost of your chosen plan. On billing, you will be charged the amount for the entire year in advance.
You can switch from a monthly to an annual plan anytime in your Account Settings. If you, however, want to transition from an annual to a monthly plan, please contact our sales department.