Android Devices
Towards the bottom of the device you will see either a square or 2 over-lapping rectangles. Pressing this will bring up all recently used apps.
To Force close:
1) Swipe up and down to scroll through the apps.
2) Swipe an app either left or right to force close it.
Apple Devices
Double-press the home button. This will bring up all recently used apps.
To Force close:
1) Swipe left or right to scroll through the apps.
2) Swipe the HomeBrite app Up to force close it.