Notice the "may be". Although there are many entrepreneurs that make an excellent living at home in professions such as consulting or information technology, the home businesses listed here are not generally big money makers. They are however, legitimate businesses rather than "make money in your sleep" or any of those other phony work from home schemes.
What’s the catch? None, really. Cash back apps act as affiliates for many online merchants, which means that whenever you make a purchase through one of the apps, they get a small commission — but then, they give you a portion of that commission as “cash back”. For example, if I buy a pair of Nike shoes through the Ebates app (or website) and spend $75, Ebates may get a $10 commission but then they’ll pass $7 back to me. It’s basically a way to get sale prices on stuff that isn’t on sale!