No they haven't - but I only know about it because my dd has been gazing at the different children using me each day and telling me it says words out loud and they type them in - like pan search pocket.
She liked the look of the monster.
It all sounds very promising.
No mention of worksheets.
I looked at the demo version and it doesn't look great for synthetic phonics either - full of stuff about "when two vowels go out walking the first one does the talking", magic e, silent letters, words ending with the er sound etc. None of it looked that logical or thought through to me.
I wouldn't buy it for my work and I don't really want my dd doing it. She'd learn more reading a dictionary for 20 mins!