It's not really like his books and podcasts - I'd say those were a lot more comprehensive. To be honest, the stuff in the app is nothing I didn't really know already as I'm very interested in the gut.
I'd say the app focuses more on how your blood fats and blood sugars and how to keep them in balance. This is the bit I wanted to know, but really its common sense - don't eat processed food, and if you are going to eat carbs, fruit etc - eat them with some fats.
There is a food section after the test and it tells you gut boosters and gut suppressors. Being really honest, if you are taking kefir and kimchi etc, and following the 30 a week, you will know then gut stuff.
I really wanted to know what my sugars, fats and microbiome were like - and I will say the results shocked me, they were really bad, and I mean really! But now I've actually seen the results, its shocked me in to action - I've always been goodish with my diet, but this has put the fear of god into me and I'm taking it seriously.
The one thing that is annoying me about the program, is that there is no follow up testing and nothing planned at the moment so I won't know if I've improved.
In all honesty - unless you specifically want to know your bloods, fats and gut tests, I wouldn't spend the money. Hope this helps.