Oh, it shows a big window on mobile with summarize and ads. You're unable to close window so you can't work with it. Don't recommend.

This would be a great app if the pop-up window rendered correctly. At first, it appears in the middle of my screen and I can read the summary, but then a couple of seconds later it magnifies to where half of the window is off screen. So it is unusable.
Also the icon that appears for you to activate it is a little too big.