On my old phone I was able to turn the click noise off, but not with Galaxy S3. I will download the app, but will not use it to take panty pics; its just too cumbersome to take photos with the phone. My Canon Elph 110HS works great for sneak shots: when you press ON button, the lens pops up and you can take a shot right away and press the OFF/ON button again and the lens go back. I can take a photo quickly in less than 3 seconds from the time the I take camera out of my pocket and then put it back in. Too bad that Canon sent me black one instead of silver as the replacement.