After trying all the free ones and failing miserably, I decided to suck it up and pay the few bucks. It was very easy to get going and it actually works. Nexus 5 / Android 5.0 Unity 4.6.1

This is a steal at $5 considering the time it saves. Implementable in 3 different ways, all of which take less than a minute. Also the publisher was quick to respond to my query and follow ups. Was a perfect addition to my defender game =)

Saved me lots of time.

Ridiculously simple to add in, saving a lot of time in the process.

This plugin works perfectly as described. It took longer for me to check out in the asset store than it did to implement and test the plugin on my device. Really adds a professional finish to my mobile game.

The author is very quick at replying and extremely helpful. The package does exactly what it says, and it was well worth it.

it works! and you dont need the manifest.xml !!!!!! this is great!!

Edit: Great response and updates from the creator regarding my original review. Revised to five stars. Original: Hard to argue with the cost vs. time saved implementing this feature. Good stuff. However, I have a couple of complaints: 1. The package doesn't compile under other platforms as-is. (Seems "AndroidJavaClass" doesn't exist under Unity iOS, for example.) Obviously it doesn't need to run in these cases, but the code should not fail to compile. Some additional #if blocks around key code solved this easily enough. 2. The instructions are incredibly straight forward, yet the package doesn't come with an easy drag-and-drop script or prefab to just plop in your main scene to get immersive mode for your whole app. It's easy to make (takes seconds with this package!) and would cover most use cases, so why not include it to make things maximally user-friendly?

Works very well, it takes 2 minutes to implement, and the developer answers very fast to help you find a solution to any problem. Thanks Ruud.

Plugins works great, even in combination with other plugins like prime31. We had an issue with a particular device and got great support, the problem was solved in time for our release.