Plans that scale with your user growth

A monthly active user is a unique user who has created a session with Castle since the beginning of the billing cycle. A session is created either when a page view or a REST API event is tracked for a logged in user. It doesn't matter how long they stay logged in, or how many events they track, they're only counted once per month.

Your price can increase or decrease based on the total number of tracked monthly active users increasing or decreasing.

Yes, you are able to make full use of all Castle features for free up until 500 MAU.

If you no longer wish to subscribe to the Standard plan, you can cancel at any time. At that point, your subscription will last until the end of the current monthly billing cycle.