I bought a refurbished iPhone 5s off of eBay a few weeks ago and apparently it was meant for sale in a country where it's illegal to turn off the shutter sound for the camera or apps that use the camera (I live in America so it's not illegal.) I've tried everything, the ringer tab does nothing for the camera and I've scoured the entirety of the settings. So is there any way at all (jail-breaking, third party apps, etc.) of getting my phone to quit making the annoying shutter sound?

TL;DR: No way to turn off shutter sound on iPhone, is there a workaround through jail-breaking, third party apps, etc.?