I congratulate them on acheiving your goal of writing an app in such a short time, but I whole-heartedly condemn this app's principle idea. Far from being a force for good it feeds into the incredible paranoia that seems to be prevail in the United States, that everyone is out to get them, and that there are such things as "good areas" and "bad areas".
The problem is that, besides the paranoia, the problem is TRUE in many parts of the United States.
Most Europeans wouldn't understand the extent of that --well, some would, like British or French, which have similar "dangerous" areas.
I made that comment, I am British I lived for many years in the poorest area of London, and I've also lived in the Banlieue de Paris. I would not class these as "dangerous".
That's an outsider's perspective, but the reality is considerably different.
I've lived in a poor neighborhood in Texas where hearing gunshots and sirens was not unusual and where several friends were attacked by a gang in a well lit WalMart parking lot.
The problem is that, besides the paranoia, the problem is TRUE in many parts of the United States.
Most Europeans wouldn't understand the extent of that --well, some would, like British or French, which have similar "dangerous" areas.