Imei Tracker: 4.1 App !!top!!

To put it bluntly:

because carriers do not expose their proprietary tower triangulation data to public API endpoints. If an app claims to have this data, it is likely a scam attempting to harvest your personal information or serve you ads.

IMEI Tracker 4.1 a third-party application typically used to locate lost or stolen mobile devices using their unique International Mobile Equipment Identity (IMEI) Imei Tracker

to see if a second-hand phone has been reported stolen.