Is there a Time Tracking App that works on the Asana Mobile App

Harvest integrates perfect on the desktop/web based platform, but the “clock” does not appear on the Asana mobile app. I’m assuming that is because it is not available on this version. Is there a way to fix this, or is there another time tracking app that works on the Asana Mobile App?

Harvest is the only time tracking app with a “deep” integration inside Asana, meaning it is officially integrated into the interface. As of toady, I don’t know any other app deeply integrated, and none inside the mobile apps… However time tracking was part of the http://asana.com/vision video, so maybe this is coming!
Would you be ok with a third-party time tracking app showing your tasks? I have listed a few on The ultimate guide for doing things with Asana