content: Loved the app but I eventually switched over to ToDo app by Microsoft because it is integrated with my work  personal Outlook accounts. This comes in handy when it syncs with my calendar  emails across web tablet  phone. It also adds flagged emails to my lists and can open the emails right from the app. But ToDo is very similar to TickTick except without having to pay for a premium membership for these key features with 3rdparty integration.