I just downloaded the iOS app and logged in with my gmail account info, but my tasks do not synch up. Is this supposed to happen automatically? Thanks!
Yes, this should happen automatically or you can manually refresh it yourself. Are you still getting the issue? Please make sure you are running the latest version of the iOS app (version 8.1.1).
Also, try signing out and signing in again and see if that helps. Let me know if you're still running into some issues.