A free program for Android, by Guardev.
Cameraless - Camera Blocker is a tool for blocking all cameras on your device. You can choose to disable the camera on an app-by-app basis or disable it altogether.
You can also control which apps can take pictures or record videos by using a whitelist or a blacklist. The whitelist allows you to allow only those apps that you trust, while the blacklist prevents all apps from taking photos and recording videos.
You can also create a special location for your device, so that the app will only block the camera when you're in that location. This is useful if you need to record a video while you're on a trip and you don't want to miss any photo opportunities.
You can also configure Cameraless to block the camera automatically whenever you're at work.
