ADW just has that thing you are describing, it can really hide all the status and just does not lack in custominzation either

 

That will be it.

 

Nova launcher has this option also.
You asked for a 3rd party app and were giving you the info.
One ui is your stock launcher which sucks so just replace it.

 

really? i never liked One UI. i have always used Nova as my launcher.....been using it since almost day one of android. nothing beats its customization and they all these cool effects when you scroll or when you switch windows or apps.

definitely give both Nova and ADW a try. both i think are great. but i'm more biased to Nova then anything else. now keep in mind to unlock most of the cool features, you have to buy the prime key ( i think it is like $2 or something like that), but it is a one time fee.

 

To be fair, you do not have to replace your launcher.

You can have more than one launcher on a device.

So, you can have whatever launcher you like as 'home', then select the other launcher from your app drawer.
Use this launcher to open the apps you desire the full screen with.

See, sometimes you CAN have your cake and eat it, too!

 

Indeed.