Unknown Caller Scary Prank is a free lifestyle app developed by TechSquad for Android devices. As the name suggests, it is a prank app that simulates a phone call from an unknown caller, only to scare the person who answers the phone with a loud scream and a horrifying photo.

This app is perfect for anyone who loves to play pranks on their friends and family. With just a few clicks, you can scare whoever you want, whenever you want. The app is easy to use and provides a realistic experience that will leave your target trembling with fear.

Please note that this app is not meant to be taken seriously and is intended for entertainment purposes only. It is important to use this app responsibly and only on people who are willing to participate.

Overall, Unknown Caller Scary Prank is a frighteningly fun app that is sure to provide hours of entertainment. If you're looking for a good scare, this app is definitely worth a try!