When comparing Office 365 vs Rooster calendar, the Slant community recommends Office 365 for most people. In the question“What are the best calendar apps for iPhone?” Office 365 is ranked 17th while Rooster calendar is ranked 21st. The most important reason people chose Office 365 is:
Office 365 is laid out the same way with a similar ribbon interface that will be instantly comfortable to long-time Microsoft Office users.
Specs
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Pros
Pro Easy to transition from MS Office
Office 365 is laid out the same way with a similar ribbon interface that will be instantly comfortable to long-time Microsoft Office users.
Pro Excellent integration and compatibility with MS Office desktop applications
Pro Allows for real-time collaboration
Multiple people can work on the same document at the same time.
Pro Speech to text dictation
Linux never got it together
Pro No installation required
Pro Combined Calendar and To-Do List
It lays out your tasks and events each day, making it easy to stay on top of things. It has a pin board for tasks that are important, 'someday' or just dont belong to dates.
Pro Beautiful UI
UI is awesome, better than the standard calendar app which is a bit bland, and has far too many layers. Rooster keeps things simple with it's single view design, making it easy to see everything you need to do at once.
Pro Summary View
Rooster gives you the option to just see your 'daily headlines', which is a handy summary of your days. It's great for when you're busy and just want to see what's coming up.
Pro Quick and easy to add appointments
Rooster makes staying organized on mobile easy. It has it's QuickCal keyboard that lets you enter your appointments in just a few taps.
Cons
Con Proprietary
Uses proprietary software.
Con Dependant on having an Internet connection
Con Cloud dependent
Does not edit local files, they have to be synced first.
Con Unusable for business in the EU
Cloud applications are mostly incompatible with the EU general data protection regulation.
Con Has only a fraction of Microsoft Office functionality
Office 365 is not a complete replacement for Microsoft Office. The most advanced functionality still can only be found on the desktop.
Con Expensive
$35/user/mo.