First, check out my other app called Bo Home Launcher!
Bo App Lock is a simple app with modern UI. Bo App Lock can be used to many of your personal apps like Whatsapp, Gallery, HDFC Bank, My Money Transfer, Messenger, Internet, Facebook, Messages, Video, Contacts, Email, Settings, SIM card services and any app you choose.
Bo App Lock implements its own custom keyboard specially designed with security in mind. That means nobody looking at your keyboard from sideways can see what passcode youre entering.