Casper Calculator

Casper is a secure chat app that is hidden behind a calculator icon.
When you install Casper for the first time you will have to set up a password.
You can do this by entering any 4 digits on the calculator and then press the "=" button. It will set as your password and you can access the app next time with same password.
Your secured numerical passcode can be changed at any given time.
You can use this app as a one on one chat or as a group chat.
Casper does not store any personal or private information. You have an option to automatically delete your chat history after 24 hours.
Need app gone in an instant?
Press the Lock Screen Button on your phone, Casper messaging app disappears, returning back to your standard calculator.
Screen recording functions are disabled while in the app for security purposes.
Casper has the below functionalities.
1) Login with Facebook, Google, and Apple accounts.
2) You can find your friends and initiate a chat.
3) You can send Photos, Videos, and voice notes to your contacts via in-app purchases.
4) Create your own user name.
5) You can delete your own account.
6) Available in multiple languages and themes.