Sorry, but I just want to chime in and completely, 100% want to warn against Zagg's Invisible Shield.
It's not like other dry screen protectors that feel natural. The Invisible Shield feels grippy and doesn't feel good to use your phone with. On top of that, bubbles formulate everywhere while I can stick on a Power Support perfectly without any imperfections. Dust lives at the edges of the Invisible Shield the minute you put it in your pocket. It's a nightmare and frankly a waste of $30. I couldn't even stand half a day with it. Considered it $30 wasted and tossed it in the trash where it belongs.