iPhone works in much the same way with a computer, where users can install and run additional software programs on it to extend its capabilities and functions. These applications can lock up and freeze occasionally, and directly causing iPhone to stop responding. On computer we can kill the service or process to get rid of frozen application. In the frozen and stuck iPhone, try the following steps to quit and exit from hanged program may avoid the need to reset the phone.

To terminate a frozen and unresponsive iPhone program, hold down the Home button when in the application for 6 seconds to kill the slow running program.

iPhone Home Button

If the trouble making app is successfully closed, the iPhone can be used right away without restarting or resetting the phone again.