‘Smart door lock’ app use to open solenoid door locks safely and smartly by making a local Wi-Fi connection with the gadget provided by RADWI electronics (PVT.) Limited. It uses secure password to open the lock. Lock password can also be reset for more security. As the app opens, First you have to click on "+" button to add Lock then Enter Lock Name eg. Main door lock then click on the lock name you have added on main screen , you will be prompted to connect to the ‘Smart Lock’ Wi-Fi. You just press ‘connect’ button and you will be connected. After that, you must have to set 8 digits password, only for the first time. This password is your key. Never give it to anyone except your trusted ones. App operation is very simple. After setting password, you only tap on the Door whenever you want to open the door as many times as you want with complete safety and convenience.