Introduction Apple Inc. designed and marketed smartphones which are known as iPhone. iOS mobile operating system that uses in all iPhone device. In June 2007, the first generation iPhone was released. It is a very reliable device with a multi-touch screen, including a virtual keyboard. A user can connect Bluetooth with their smartwatch and also cellular network through WiFi. An iPhone can send and receive browse the web, email, play music, take photos, shoot video, GPS navigation, mathematical calculator, receive voicemail and also send and receive text messages. The user can also use more functionality through a mobile app. The first generation iPhone was GSM Phone. The 3G network supported in iPhone 3G mobile. Later on, this device upgrades hardware programme, higher display resolution, and front-facing camera. In 2013, Apple launched 5S with a fingerprint sensor and boost hardware performance. Apple iPhone 6 plus was released on September 2014 with a specif...