Android: The notification shade is easily one of the best innovations that Android brings to mobile. However, it's not perfect for everyone. Floatify offers an alternative: pop-up notifications that are even available in immersive mode.
The pop-ups can be set to come in at either the top or bottom of your phone's display, and you can change the colour or opacity. Pop-up notifications can be swiped away just like normal ones, and you can designate gestures that will show your notifications again if you missed them. You can still use this in tandem with the notification shade itself if you wish.