Yes, you can connect Runkeeper to Vida indirectly.
On iOS devices, you can connect RunKeeper to Apple Health and then sync Apple Health with Vida. Whenever you log a run and send it to Apple Health, it will appear in the Vida app.
On Android devices, Runkeeper can also sync with Strava or Fitbit. Once connected, you can link either of these apps to Vida and transfer your Runkeeper workouts to your coach.