When comparing Morgen.so vs SmartDay, the Slant community recommends Morgen.so for most people. In the question“What are the best calendar apps for Mac OS X?” Morgen.so is ranked 5th while SmartDay is ranked 7th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Supports general CalDAV calendars
Pro Google synchronization
Connects to your Google accounts via OAuth.
Pro Easy to setup
Connecting to service accounts (such as Exchange) is easy and straightforward.
Pro Natural language
It supports interaction using natural language (English). For example "Schedule a meeting with John tomorrow at 11".
Pro One-click installation
First installation and updates are done with only 1 click.
Pro Supports Exchange calendars
Including Exchange, Outlook.com and Office 365 accounts.
Pro Free
Totally free and in active development.
Pro Integrates task-management with the calendar
The app doubles as a task manager and allows dragging and dropping tasks into the calendar on specific days. If a task does not get completed on that day, it automatically gets rescheduled.
Pro Aims to provide a complete organizational solution
The app includes a way to manage tasks, take notes, set reminders and manage project from within the calendar.
Pro Calendars can be shared
Cons
Con it's not free
not as pricey as others, but still not free.
Con Doesn't integrate
Does not support Google Calendar integration.
Con Support is limited
The app support is confusing and hard to navigate.
Con Lacks natural language input
Natural language input allows creating events in the same way if you had to tell it to a friend. Writing something like "Lunch at 2pm" would add an event called "Lunch" at 2 PM. SmartDay lacks that functionality.