Internet of things-Standalone ESP8266 ,switch by Android phone

For EEE, ECE, ESP8266 ,Stand alone not requiring any Arduino or microcontroller or bluetooth, driving mains load through Android application from any smart phone in home WiFi network.The biggest advantage is that it has user configurable SSID and password for the WiFi network in contrast to many program where WiFi ID and password are hard coded thus are not user friendly but dedicated to use in the same network only.The cost also is within Rs 500/- in INR or $6 in total for all the material