It is no different, any application that does this makes you subject to liability depending on local laws. If it is illegal in your area to record someone witho

It is no different, any application that does this makes you subject to liability depending on local laws. If it is illegal in your area to record someone without their consent and you hold up your phone in a bar while using something like Shazam you may be breaking the law. While the odds of you being prosecuted for it may seem unlikely, doesn't change the potential liability.