“Look I kinda get it, there are a million todo apps for Windows/macos/android/ios. I've used wunderlist and as a todo manager it's quite good. But really.... What I need is an integrated calendar/tasks/todo list for MacOS and iOS (could just as easily be Windows/android). Todo lists on their own get used (by me at least) for a day or so then back to a calendar app. Well google calendar is far from perfect, but has tasks or reminders (not both). You can only show one task list at a time, so my tasks go into the all tasks list. And on the phone, calendars by Readdle. You need the $2 task connector. Then everything is sync'd and all together, appointments, todos, notes etc.
MS Should look at the 'big' picture (OK some may get away with just a todo list, but I bet most won't). I use gmail web-app calendar (yes there are limitations, google apps designers do some simply counter-intuitive and stupid things) made into a desktop app by using a Fluid wrapper. It's not perfect, but for $2 I get everything on all devices sync'd together.
So a decent calendar app with included/embedded Wunderlist, sorry MS todo, would work for perfectly me. This isn't an anti-MS todo, as I said I really like Wunderlist, but on it's own, meh, it's a nice app that will get used less and less because it just doesn't sync everything together in the one place.”