Apple

It's exactly what the title says. Numerous people have also experienced this, and no one seems to have the answer. It's a "click click...click click...click click" sound with the exact same time intervals exact same period exact same noise. I first started getting this noise from the Duolingo app when I opened it for the first time in a really really long time (see others complaining about this here (video example), here, and here; the most recent one was three days ago). I updated the app, deleted and reinstalled it, didn't work. The only thing that worked was if you put the phone on Silent Mode. So I thought maybe it's some bug with the app's audios.

But today it happened again to a different app: Star Walk 2. The clicking noise was the exact same in the exact same intervals. Silent Mode turns off the app's ambient music and eliminates the sound.

Needless to say this is EXTREMELY CREEPY. The fact that it happened to different apps suggests that it must be an iPhone or iOS problem. I've been scouring the internet and no one has a definitive answer. Is this happening to anyone else also?? For the sake of my sanity can someone PLEASE figure out what the hell is going on?? Did I get some sort of malware or spyware?? I'm using an iPhone 13 Pro Max running ios 15.6.1 but it happens to other people with different iPhone models and different iOses too (one person said that it was even happening to their Reddit app!) If this is such a widespread problem surely you guys have experienced this?? If you have any information please chime in, because it would really help. Thanks.