Dec. 5, 2019 Update Moved from 5 stars to 2 for the reason below: I've had this app for about half a decade. The last couple years have been irritating. I add sub tasks. When I go back to the tasks, the sub tasks aren't there. I wish there was a save button as a cue and confirmion that the subtasks are saved. Not sure how long I could forgive the app until I just use another one altogether. Please address subtasks staying in the next update. Thanks! Was 5 stars for the longest time Awesome!