I wish I’d thought of this: green, yellow, red. Simple for the typical user to follow regardless of validity. Whoever’s behind Noom will make a fortune as they’ve created the perfect weight-loss app, regardless of whether or not it works or provides healthy guidance. Next up: Noom for Dating! Select from potential dates labeled green (good date), yellow (so-so date, maybe the best you can get if you’re yellow too) and the stay-away-unless-you-like-the-bad-ones red dates for those who, like the Chinese chef who took his equipment to the Bronx, like a wok on the wild side.