A WAP site directory is a listing of websites that comply with the wireless application protocol for websites designed for mobile devices. WAP site directories provide users with sites that are accessible using the mobile browser installed on a device without having to install apps created for specific devices.

WAP sites are similar to traditional websites but are designed with consideration given to the limitations of the devices used for viewing them. These limitations include smaller screen sizes, reduced bandwidth capability and limited navigational aids. WAP sites ensure greater compatibility among users of various devices while maintaining most of the functionality of the standard Internet counterpart. They also spare developers from having to design multiple sites that conform to the numerous operating systems and devices available.