There are ads if you use it outside of the UK :)

I've used it as my main source of getting news from back home. Ignoring the quality of the editing (I spot a spelling or obvious grammar mistake almost daily), the app is decent.

It's straightforward. I can pick the categories I want. It just gives you the top X articles per category, nothing more. Doesn't link you elsewhere. One headline, one thumbnail image, sometimes 1 image embedded in the article. There's are very few buttons to be confused by. One of them is font size. I'd say it's pretty grandma-friendly!