That little barcode you scan for “members-only” prices feels harmless, especially when it saves you a few dollars. But a grocery loyalty program isn’t just a discount tool—it’s a data tool, too, and it gets smarter every time you shop. The good news is that tracking isn’t automatically evil, and you can still use deals without handing over more info than you want. The better news is that once you understand what’s being collected, you can make calmer choices about settings, permissions, and how you redeem offers. Here are five common ways a loyalty app tracks spending, plus a few practical moves to keep your budget and privacy in your control.
