If you've ever gotten a free sample from, say, Costco or Sephora, you know that a free sample can easily turn you into a regular buyer of a product. Sign-up bonus apps work the same way, and they have ...

In the app era, bonuses are less a gift and more a financial bet on future behavior.

Megan Cerullo is a New York-based reporter for CBS MoneyWatch covering small business, workplace, health care, consumer spending and personal finance topics. She regularly appears on CBS News 24/7 to ...

Cash might be king but its kingdom looks more and more digital. It's no wonder that money transfer and payment apps are so popular, making transfers easy and quick. Cash App stands out from the pack ...