A wireless application is designed to function when the device is connected to networks (e.g., the Internet) or other devices wirelessly. An example of such an application is a directory service, such as Indigo, found on handsets and PDAs with wireless Web services. These applications allow users to access and even manipulate data on the move. More and more organizations are beginning to develop wireless applications for their employees so they can access critical corporate data whenever and wherever the service is available. The primary advantage of a wireless application over a mobile application is that the user can have access to the most up-to-date information; therefore, if the information in an organization frequently changes, a wireless application is more appropriate in this situation.