What's your favorite planner app/software?

[Bryan Stottlemyer]

I was browsing the world of digital planners recently. I secretly miss the days of notebook style planners, but I also really enjoy technology and keeping things simple with electronics/apps. I was hoping to find an app or digital planner that would sync with my Google calendar, and allow me to take detailed notes (think Goodnotes app), as well as keeping a to do list. Not that there's anything wrong with having the separate apps for those things, just hoping to find an all in one. Anybody got anything cool?