My 4K Video Downloader can not download in 4k (2106p) - not selectable as an option.

My 4K Video Downloader can not download in 4k (2106p) - not selectable as an option.

(smart mode/manual mode options only go up to 108p resolution)

I can't figure out if I need the PAID version of 4K Video Downloader for 4K and 8K downloading.

I was attempting to download this YouTube video:
https://www.youtube.com/watch?v=9R77ns182mc&feature=youtu.be
It shows 1080p when downloaded obviously although 4K is available..