There are over 2 billion smartphone users in the world today. The enormous rise in the use of smartphones globally has also led to a surge in the usage of mobile applications. There are over 2.2 million Android based applications in Google PlayStore and over 2 million iOS applications in Apple's AppStore.
Encryption provides a level of security that scrambles all the information on your phone with a special cryptographic key. That means even if someone breaks through the lock screen and access your phone, the data wont be available without that key.