The App is a connection tool used in conjunction with AT&T's free Wi-Fi services that is available for iPhone subscribers in the US. The tool eliminates the tedious SMS-based method of connecting. Once you have entered your phone number, you simply press the large login button and you are connected.
Easy Wi-Fi comes in two editions. The free edition is for connecting to AT&T wireless access points only. The paid version (iTunes Link) expands the app's usefulness by giving you access to logins for numerous Wi-Fi hotspot provider networks Globally. Both versions of the app give you access to register a free account on Devicescape's servers.