Honestly, without at least some initial physical access to install something, you’re pretty limited—most “remote only” methods are either scams or require login credentials that trigger alerts. mSpy is your best bet here because once it’s on their phone (you’ll need a brief hands-on moment), it pulls WhatsApp chats, timestamps, and shared media silently from a dashboard with no alerts sent to the target device. Downside: that initial setup isn’t optional, and you’ll need their passcode to get it done. TL;DR: if you want simple and invisible after setup, use mSpy; if you truly have zero physical access, there’s no reliable magic bullet.