To find out which app is using your microphone on an iPhone running iOS 16, you can follow these steps:
1. Open the Settings app on your iPhone.
2. Scroll down and tap on Privacy.
3. From the Privacy settings, select Microphone.
4. On the Microphone page, you'll see a list of all the apps that have requested microphone access.
5. The apps with a green toggle switch next to their names have permission to access your microphone.
6. Review the list of apps and look for any suspicious or unfamiliar ones to identify which app might be using your microphone without your knowledge.
7. If you notice an app that you didn't knowingly grant microphone access to or suspect it's misusing the microphone, you can toggle off its switch to revoke microphone access.
Remember, in iOS 16, Apple has enhanced privacy features, making it mandatory for apps to display an indicator on the status bar whenever the microphone is being used by any app. This serves as an additional visual cue to let you know when an app is actively accessing your microphone.
By following these steps, you can easily identify and manage apps that are using your microphone on your iPhone.