A free app that helps you to view all your previous connected wifi networks and their correspnding passwords. It also allows you to save and restore passwords for future use. It's an easy way to ensure you don't forget your old wifi password.

You can download it from Google Play.

How to use it:

This app is completely free to use and you don't have to pay anything to use it.

You will be guided through the installation process and you'll be able to connect to all the previously connected wifi networks you've ever connected with this tool.

The app can also be used as a network analyzer to find out what the wifi network is like and how fast it is.

The Wifi password key show app is intended to be used with a rooted device.