PopCorn is a new tweak that allows you to peek at the apps directly from the springboard. You can use the app just like you do without having to run it in the background. Just press harder & you can peek at your favorite apps on iPhone 6S
PopCorn
is a new tweak that allows you to peek at the apps directly from the
springboard. You can use the app just like you do without having to run it in the
background. Just press harder & you can peek at your favorite apps on
iPhone 6S. If you don’t have a iPhone which has 3D Touch functionality, all you
have to do is swipe the icon upwards & you’re good to go. It is available
for free from biteyourapple repo and is compatible with iOS 9 or higher. 

If your device has not yet jailbroken, then follow this step by step guide to to jailbreak iOS 9.0.2 untethered by Pangu.