Tools to detect spyware on a network?

Web: https://www.reddit.com/r/privacy/comments/xdk1xo/tools_to_detect_spyware_on_a_network/

My iPhone may be infected with spyware but I can't find any information on how to detect it besides dumb articles listing "the 10 obvious ways to tell a phone has a stalkware: being slow, etc...". However, I suppose there is specialized traffic analysis software for this job. What tools or network devices are best suited to detect it?

network privacy spyware tools