It's a scam. The service doesn’t magically track phones by number alone—you need the device owner’s interaction, and it typically involves consenting and possibly downloading something or granting browser permissions.Many of these services seduce users with "$1 trials," only for: Ongoing recurring charges that are hard to cancel. No refunds even after cancelling early. I found the review: "I purchased the app… thought it was $4.99/mo… they charged $60 for the yearly plan and denied the refund.”
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