Yeah I agree but I am assuming you are looking for a better more confidential way of reporting this stuff and protecting people's privacy so they feel that the company won't find out. A smart phone will not provide that protection.
If you want real confidentially you go old school hand written documents on sealed envelopes. That way noone can hack your computer or phone, and the post has legal protection in that it can't be intercepted. Even get it sent registered if it's that big a deal.