Every major fast-food chain, it seems, now has its own app promising deals, discounts, and a better diner experience overall. But what’s the cost of convenience?

FoodNoms is a new privacy-oriented food tracking app that tackles the tedium of logging what you’ve eaten in innovative ways that make it one of the most promising apps in this category that I’ve seen ...

the trade-off between privacy and convenience is acceptable. But for young people, who are more likely to use fast-food apps than older customers, the consequences are more complicated.