Reverse Phone Detective does require customers to accept a userâs agreement that prohibits using their information in an illegal manner, but thereâs still a chance that your information can be used for ill. If youâre uncomfortable with your information being available, you have the option of removing your contact info from their database. As a user, Reverse Phone Detective is available for a yearly membership fee of $39.95 or you can pay $14.95 for a one-time full-phone report. Reverse Phone Detective offers a sample of their product free of charge, providing you with city and state information for any phone number you enter.