The Squire account is our free account and gives you a chance to try out CardCastle before deciding to pay.
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As a Squire, you can add unlimited cards to your collection, create a single deck, add up to ten tags to your cards and get real-time card prices. However, you are limited to browsing the first 1,000 cards added to your collection.

The Knight account is our paid, full access account. 

As a Knight, you are free to browse your entire collection, create as many decks and tags as you want, access statistics about your collection, in addition to everything a Squire account can do. Knights also get access to all the exciting new features as they are released!