Just a few suggestions / queries.
1. Are there plans to add expand / collapse functionality to the iOS app?
2. Is it necessary / always desirable to have sub tasks indented in the today or 7 days screen? In that context I think I'd prefer them not to be indented.
3. On the tabs for Projects, Labels and Filters, the red / orange line sits to the left of the tab when Labels or Filters is selected, but to the right when Projects is selected. Should it be to the left for all three?
Probably starting to get a bit picky, but todoist seems very close to being perfect.