The costs of online dating are less because you know what your monthly charge is and at any time, you can cancel your subscription.
The technology with offline dating companies are a combination of algorithms and human interaction. When a member registers and gets approved, their profiles are uploaded to the system and are not visible by other approved members. Only the random numbers to call administrators of the website can access members profiles and invite members to events, send updates on new happenings and offer dates for a fee. If a member wants to search through the offline dating sites database, only administrator can perform that function for him or her. When a search is completed on behalf of a member interested in finding matches, the system generates appropriate matches based on algorithms that the administrator sets, usually a 70% or higher compatibility. Once those appropriate matches are generated, the administrator can send a photo and bio for the member interested in getting dates to view, with just a click of a few buttons. No other information about the member is sent.