WiFi Connect (WiFi Picker) is WiFi manager that offers a more intuitive, visual, and practical interface than Android's default manager. Thanks to this app, you can view all nearby networks, with their respective intensities, with just a glance at your device's screen.
By tapping the name of a network you can see more information about it, like speed and service provider. You can also view the speed of the WiFi network you're currently connected to.
WiFi Connect (WiFi Picker) is a good WiFi manager that offers a lot of improvements on Android's default one. It's also important to remember that it's not an app to retrieve WiFi passwords or anything like that, just a WiFi manager, nothing else.