Having gotten into cocktails recently, it really only takes buying a few bottles and trying e.g. the top 50 or so most popular cocktails from a proper site like Difford's Guide to see that basically everything is a minor variation on the same base 5-12 or so cocktails. Which in practice means if you learn to make the 20 most historically-popular cocktails, you basically know enough to predict fairly accurately what an arbitrary cocktail is going to taste like.

There really aren't that many base spirits and/or liqueurs, and the financial (and time) cost of learning these things yourself is a mere fraction of what it takes to learn from going to bars or restaurants, and can be done in about 1-2 months max (assuming you make 1-2 cocktails a night, anyway). I also kind of feel like normies and/or regular cocktail samplers quickly figure out this stuff too, even just ordering at bars and etc., so I dunno that an app adds much here or who the audience would be.

Still, enjoyed the post.

EDIT: What I suppose is maybe unclear: If you are using the app regularly, you are sampling cocktails regularly, and, very quickly, in my experience, you will learn to predict cocktail profiles in this case, rendering the app irrelevant, as predicting the profile is very easy. There might be a use case for the app if you have never tried more than e.g. 5 cocktails, but, in that case, you probably also don't know your profile preferences either, so, I dunno, it just doesn't have a clear use case for me.