iOS is the best mobile operating system because of its exceptionally great UI. If have used iPhone and iPad both and found them quite stable. Most of the applications, whether for the iPhone or iPad, are pretty stable and work every time. But occasionally some apps die and quit or, worse, get "stuck" and end up frozen, forcing you to restart your device to get it to work again.
Think of a situation when you are talking to someone or playing a game on your device and you are forced to restart it. How displeased you will be. But wait a minute there is a free application called Process Killer that can help you in shutting down misbehaving applications automatically.
Process Killer can help you in closing all the background apps at once. You don’t even have to jailbreak your device. Launch the app and then shake your iPhone / iPad to terminate every single app that could be running in the background.
It is a very useful application for extensive iPhone/iPad users who face stuck applications usually. Try it and share your reviews with us.