Castle vs pfSense: What are the differences?
Developers describe Castle as "Track security events or any unstructured data from your web backend or mobile app, and Castle will look for anomalies". Castle looks for suspicious login patterns without bothering the legitimate user nor the site administrator. The fully-automated anti-hijack engine identifies potential account compromises based on where the user logs in from and how they navigate the site. On the other hand, pfSense is detailed as "An open source firewall/router computer software distribution". It is an open source firewall/router computer software distribution based on FreeBSD. It is installed on a physical computer or a virtual machine to make a dedicated firewall/router for a network.
Castle and pfSense can be primarily classified as "Security" tools.
Castle.io, Cityzen Data, and Nuxeo are some of the popular companies that use Castle, whereas pfSense is used by Rézoléo, Hamravesh, and TekFinest. Castle has a broader approval, being mentioned in 5 company stacks & 16 developers stacks; compared to pfSense, which is listed in 5 company stacks and 5 developer stacks.