I just glanced at that site, and I could not deal with all that.
It asks "What are you in the mood to eat?" Like for the entire week.
I have no idea what I'm going to what to eat at any given point during the next week.
I also don't need something to tell me what I need to buy to make what I'm going to be in the mood for.
Like GW, I know what goes into what.
I go to one store, look at the prices that are on special when I walk around, and if it's fruits and veggies we like, I get them. Or if it's other stuff we use regularly. If our brand of coffee or toilet paper is on sale, it goes in the cart.
During the week sometime, we get flyers from all the stores around, all on the same day. Sometimes I'll glance at the one from my store and think, "hmm, this and such is on sale, I'll get that" Otherwise, I just look in the store.
Then again, I'm one who doesn't see the purpose in all these phone apps that does stuff I'm fully capable of figuring out myself, like tips, or how to tell the difference between my ass and my elbow.