What's a calendar + to do list app that will work on both my MacBook Air and iPhone I've looked all over for such an app, however the ones I find are either calendar apps (e.g. Sunrise Calendar) or to do list apps (e.g. Any.do). 

I was wondering if anyone knew of an app that had both these functionalities and was available both on my MacBook Air running 10.12 as well as on my iPhone running iOS 10.
Busycal is a wonderful calendar app that is a more fully featured version of iCal (predecessor to the even-less-imaginatively-named Calendar).   BusyCal does include ToDo List capability with multiple lists, which can be associated with specific calendars.  Can include tags, alarms, priority, notes, etc.
One of my favourite things about BusyCal is that it is not a slave to month boundaries, so the &quot;month&quot; view can include 2-12 weeks and can start whenever you want.  I find it much more useful to see the next six weeks from today, than to see the rest of this arbitrary calendar month!  Also the text color (rather than the silly dot) indicates which calendar an entry is associated with.  Weather forecasts for the next ten days are also added (optionally), which is great for planning outings! This screenshot shows those big -- they can also be just tiny.
http://www.busymac.com/busycal/

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