Again, sorry for the blurriness. Though it looks quite unique, I have a feeling it's not custom.

Sorry if it's a bit blurry. It's lifted from a video.

The font used in Safari Reader is suppose to be extremely legible. Can anyone identify it? I'm not so good with serifs. Thanks!

The R should give it away but unfortunately I do not know what typeface it belongs to. Help?

What is the font? At first I thought it was maybe Avenir or Gotham but the G is really quite confusing.

Thanks so much!