This app was mentioned in 1 comment, with an average of 6.00 upvotes
Looks like it's at https://play.google.com/store/apps/details?id=ateamsolutions.com.stravagame for Android.
With only "100-500 installs" (on Android) and a most-recent release over six months ago, I'm not particularly surprised you're not seeing much usage in your area, OP. Fun idea, though.