Fake Call and Sms is a free Android application that lets you prank your friends and family. The app has two main functions - fake calls and fake text messages, that can be customized according to your preferences.

With the fake call function, you can choose from a variety of phone lines such as Asus, HDM Global, HTC, Samsung, and more. You can customize the caller information, including name, phone number, avatar, duration of the call, and even the ringtone. You can also select a character such as girlfriend/boyfriend, pizza, dad, or mom and set a timer to receive an incoming call at your desired time. Additionally, you can customize the ringing mode and the application security function to prevent others from opening the application on your phone.

The fake text message function allows you to customize the name, phone number, text message content, and time of the message. You can even select information from your phone contacts and fake messages in the inbox, outbox, or draft mailbox.

Overall, Fake Call and Sms is a fun application to prank your friends and family with. As it is only an emulator, there is no charge, and it's completely free.