I recently downloaded the app by Chess.com called Dr. Wolf. I've used it for about two weeks now and wanted to share my experiences with it from the perspective of a novice player.
After I did a few sample games with the app, I enjoyed it enough to go ahead and sign up for a subscription. At the time of this writing, the subscription cost is $4.99/month.
After about two weeks, I have found that I have learned quite a bit from it and I'm enjoying the plain-English explanations of why my moves were good or bad. I enjoy playing this better than an unresponsive computer opponent, anyway.
Often, he will teach you something before the game and when you play him in the next game, he will setup (usually) that scenario that you can learn to recognize that pattern. Okay, that's pretty cool!
I especially enjoy the feature where he recommends we flip sides after I make a blunder so I can better appreciate my mistake.
My main complaint about the software is that it is a subscription model. I get that this is the most common means that software companies are going about making money these days, but I would rather pay up to $29 once for this app and be done with it, rather than have a subscription. So my plan at this time is to work with it daily for a few weeks and see how it goes.
Also, I readily admit that this is no replacement for a chess coach. I am consider this in order to get me off to a good start and see if it would work for someone as busy as myself. Right now I'm just trying to get some basics down before I make that jump.
I should add that I have read in the forums several complaints about the app by more seasoned chess players. They feel there are a number of inaccuracies about the recommended moves. I'm not really qualified at this point to make this assessment, but I did appreciate their reviews.
To learn more about this app, visit the official Chess.com Dr. Wolf page: https://www.chess.com/news/view/dr-wolf-joins-chess-com
(All images are from Chess.com)