First, open “Settings” on your iPhone by tapping the gear icon.

In “Settings,” tap “Privacy.”

In “Privacy,” tap “Camera.”

After that, you’ll see a list of apps that have asked you for camera access in the past. Apps that currently have access to your iPhone camera will have a green “on” switch beside them. Apps that do not have access have a grey “off” switch beside them.

(Also, apps that are not listed here do not have camera access, either.)

If you’d like to take away iPhone camera access from an app, tap the switch beside it in the list to turn it off. Likewise, you can also grant camera access to a listed app by turning the switch on.

After that, exit “Settings,” and your changes will already be in effect.

If you’re running iOS 14 and up, you can easily tell when an app is using your iPhone’s built-in camera. Simply look in the upper-left corner of your screen at the status bar: If you see a green dot there, then an app is using the camera. (If there’s an orange dot, that means your microphone is in use.)

If an app is using your camera when you don’t expect it to, it might be worth visiting the settings we detailed above (Settings > Privacy > Camera) and flipping the switch beside it to “off.” After that, the app will no longer be able to use your iPhone’s camera.