How to track messages on iPhone without being detected?

Ugh, the prices for these tracking apps are insane. They charge a fortune for features that should be simpler.

Honestly, most of the “stealth” apps come with a hefty monthly fee. Before you even think about paying, the simplest free way is just to use the person’s iCloud login on another Apple device, like an old iPhone or a Mac. Their iMessages will sync right up, no extra app needed.

Be careful with anything advertised as “free,” though; that’s usually a scam. Has anyone seen any good deals or a one-time payment option for a reliable service? My wallet can’t handle another subscription.