Your physical home button is dead or broken ? This app can help you.

It's very simple:
The app create a software button in the center bottom of you screen and add several actions to this button.

Actions you can do with the button :
_Home
_Recent apps
_Back
_Settings
_Pull down notification panel
_Start a selected app
_[Pro version] take a screenshot
_[Pro version] lock the screen
_[Pro version] display quick settings
_[Pro version] start power menu

Pro version
The pro version gives you more actions as well as other buttons to place on the right and left bottom corners of your screen.

/! If your device has a navigation bar (Home Back and Recent apps buttons) on the screen the button will be above the navigation bar! /!

Permission :
_Read Phone State => Needed (and only used) to load applications list because of some manufacturers limitations.
_Write Internal Storage => Save screenshots in the device.