Help fat fingers grab screen without opening apps?

[catchingup]

is there a feature or app that allows you to handle the phone with a fat thumb across the screen without accidentally opening a bunch of apps on the home screen?
or is the only way to turn off the screen first?

 

[hiredgun]

Don't know how well they work, but I think this is what you are looking for

https://play.google.com/store/apps/details?id=com.argotronic.touchblocker&hl=en

https://play.google.com/store/apps/details?id=com.hatcyl.android.NoTouch&hl=en