Premium features

Hi, I’ve been using WordPress Gallery Extra for a short while with no problems. However, I would need some features, like titles on mobile thumbnails, which I remember was a premium feature.

Now, I remember having seen a list of premium features, but cannot find them anymore. Where have the list disappeared? Also, if I remember correctly, in the list was mentioned the additional mobile functions, but not set out what these additional functions are.

Can you please provide the full premium feature functions!