Christian Crush is a free Christian dating site. The site has gone through a revamp and now has a mobile version which is nice since most users are smartphone users. The strength of the site is the detailed responses to the sign up questions in the member's profiles. Which allow you to get a good feel for other members.
The site is free to register, browse profiles and send messages, but to read received messages or include your contact information in messages you will need to sign up for their paid monthly subscription. A really nice plus about the site is that they donate 10% of all subscription proceeds to local ministries.
Unfortunately, ChristianCrush.com seems to be growing slowly as there were no matches in our area but hopefully with the site revamp they will have more members joining.