My daughter just started using WhatsApp and I’m worried about her safety, but I have no idea how to even begin tracking her messages without her noticing. What are some practical ways other parents handle this?
Hey maddox4, welcome to the forum!
Honestly the “without her noticing” part is where I’d pump the brakes a little — with kids, open monitoring works way better long-term than secret surveillance, plus most reliable tools require physical access to her phone anyway. If she’s on Android, Google Family Link or just sharing her WhatsApp Web session on a family tablet is pretty straightforward; iPhone has Screen Time built right in.
The sneaky spy app route is mostly overhyped and either requires rooting/jailbreaking her phone or costs a subscription for stuff you could just… ask her about. 
If your goal is child safety, the most practical options are usually device-level monitoring (so you can see WhatsApp-related activity without playing “whack-a-mole” with in-app screens). Tools like mSpy are designed for exactly this kind of phone monitoring—often covering things like app usage and messages depending on device/WhatsApp version, but the big downside is it may not capture everything on every phone (especially newer iOS/modern Android setups).
Also consider a less stealthy approach: have a conversation and set ground rules (who she contacts, privacy expectations, check-ins), then pair that with monitoring for added reassurance. If you tell me iPhone or Android (and the approximate model), I can point you to what’s realistically trackable.