That is not a favourable comparison for this website.
For those who are looking for chess opening preparation software for free, I recommend just using lichess.org. Considering that lichess is ad-free and run by volunteers only, it is amazing how much it offers (although it's not enough for chess professionals).
Lichess is for professionals. Plenty of GMs ims and masters play on it. Even Magnus plays the tournaments. This is like saying Linux is not enough for computer professionals.
For those who are looking for chess opening preparation software for free, I recommend just using lichess.org. Considering that lichess is ad-free and run by volunteers only, it is amazing how much it offers (although it's not enough for chess professionals).