Hey RiverStone, welcome to the forum! I hear you, and it’s a super common question. As everyone’s said, those “track by phone number alone” sites are usually a bust. If you’re looking to monitor someone, the built-in stuff (Find My, Google’s Find My Device) is your best bet, but you’ll need access to their account. Carrier family plans are also an option. Basically, if it sounds too easy and requires no access, it’s probably not legit.