content: Tried ALL of the other apps. None had the overall features of TickTick. Especially needed the calendar which many todo apps dont have. Was primarily using Google Calendar plus Toodledo. This combines most of the functions of each of those into one interface. Easy to learn. Great mobile app and great desktop web access. Great mobile and PC reminders. Easy to forward uncompleted tasks. Could use more color options particularly to highlight specific calendar entries for categorization purposes.