When comparing Apache OpenOffice vs Office 365, the Slant community recommends Office 365 for most people. In the question“What are the best office suites for UNIX-like systems?” Office 365 is ranked 5th while Apache OpenOffice is ranked 9th. 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
Ranked in these QuestionsQuestion Ranking
Pros
Pro Free and open source
Licensed under Apache License.
Pro Comprehensive suite of applications
Apache OpenOffice includes applications for word-processing, spreadsheets, presentations, and database management.
Pro Cross-platform
OpenOffice is available on Windows, Mac OS, and *nix systems.
Pro Multilingual
OpenOffice is available in 170+ languages.
Pro No CopyLeft
Unlike LibreOffice, its Grandfather OpenOffice is real open software for anyome.
Pro Full compatibility with Microsoft
Fully compatible with Microsoft formats - from the oldest to the latest.
Pro Quickstart
It has quickstart on Linux, a feature that makes opening a file blazing fast.
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
Cons
Con Dead project
The project looks dead. They can't close even serious security vulnerabilities. You might want to use Libreoffice instead.
Con Documentation is lacking
OpenOffice documentation is incomplete and language is highly technical.
Con No copyleft
It's good for developers but bad for openoffice for example: libreoffice relicensed it under GPL now libreoffice can integrate all changes made to openoffice but openoffice is unable to integrate improvements from libreoffice.
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.