A look at dating apps like Lumen and OurTime that cater exclusively to users over 50, who often find being approached by much younger users unsettling (Dougal Shaw/BBC)

Dougal Shaw / BBC:
A look at dating apps like Lumen and OurTime that cater exclusively to users over 50, who often find being approached by much younger users unsettling  —  Is your new year's resolution to find true love?  If so, you may well be considering a dating app for your phone.