A "free Stingray phone tracker app" does not exist in the way the term is marketed.
A simple way to see where friends are in real-time with their consent.
Rather, a (also known as an IMSI Catcher) is a sophisticated, military-grade surveillance device used primarily by law enforcement and government agencies .
This process requires —physical antennas and radio-frequency hardware. A standard smartphone cannot broadcast as a fake cell tower because it lacks the necessary transmission power and firmware access.