"Clap and Lock Phone" is a free Android application developed by "FREE APPLICATIONS" under the Personalization category. This app allows users to lock or unlock their mobile phone screen using a clap sound. The app is a fun and unique way to change the state of the lockscreen and can be used to prevent unauthorized access to the phone.

The app detects the sound of a clap and then locks or unlocks the mobile phone screen accordingly. This feature can come in handy when someone tries to use your phone without your permission. The app is easy to use and does not require any complex setup. It is a lightweight app and does not consume a lot of resources on the phone. Overall, "Clap and Lock Phone" is a simple and effective app that can add a fun twist to your phone's lockscreen.