When a task is completed from the details screen (tap on task description to see all details) and the user taps on the completed checkbox, the iOS app stays in the same screen. The user has to navigate manually to the previous screen. The web version would close the details screen upon task completion and return the control to the previous screen ( as if user had clicked in the “Back” link).

The current flow in the iOS app is inefficient as there is usually no follow up action after a task is completed, the app should mimic the flow in the web version