From the Appscope listing:
Make the most of your travel time and dime, with city guides and advice from the city’s coolest locals.
The URL to tap on or type in is coolcousin.com .
Of course, you can turn this into an 'app' yourself with PAWA or just pin it 'as is' on your Start screen. It's up to you.
Here's Cool Cousin PWA in action (note that it's graphically rich, so do try to be on a good connection or decent Wifi, wherever you happen to be!):
A thoroughly modern PWA app for its web site - the hamburger menu is a little crude, but don't worry too much about this. Note that you can register to be a cousin yourself - I wonder what the criteria for being accepted are?
Lush photography at every turn, with 'professional' photographers backing up 'cousin' recommendations... Just drill down from the city of interest and follow your nose to see what a particular cousing has to say!
You can sign in to get a degree of consistency across devices, though this isn't really needed on Windows 10 Mobile and Edge, I think; (right) drilling down to a beachside dessert paradise in Rio, recommended by Leonardo!!
Tap through to get the full details/write-up, including contact, web and opening times, etc.