London's Oyster cards are getting an app for easier top-ups
 

Contactless payments make it so easy to get around London that the trusty ol' Oyster card isn't as convenient as it once was. You can add funds or Travelcards online, for instance, but then have to wait 24 hours and tap in at a specific station to ac...

https://www.engadget.com/2017/07/19/oyster-top-up-app/