You are not the first person to suggest such an app. Perhaps now with the new backend coming along someone could start working on such an app.
How is that going to help?
@itsbruce started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
How is that going to help?