WeFi is an internet connection manager that scans and find all available networks. Is an interface to find and choose quickly the best WiFi connection that is available for you.
You can sort connections found by name, category, security (encrypted with password or not), status (connected or not) and, probably the most important, signal strength.
It can be set to connect automatically to best network available, is has a nice interface and offers the feature to join a community where to rate internet connections.
