Unpleasant, but true conclusion in Christian Schaller's open letter to Apache Foundation and Apache OpenOffice team:
So dear Apache developers, for the sake of open source and free software, please recommend people to go and download LibreOffice, the free office suite that is being actively maintained and developed and which has the best chance of giving them a great experience using free software. OpenOffice is an important part of open source history, but that is also what it is at this point in time.
At rollApp we provide access to both Apache OpenOffice and LibreOffice. Both suites get more or less the same placement on our site and in the app stores, where we make them available. With all that OpenOffice applications are used almost 3 times more often than LibreOffice – that's a huge power of the brand.
In our experience LibreOffice provides greater compatibility with Microsoft Office file format and we use it as a default for opening office files on rollMyFile
PS LibreOffice development is indeed wa-a-ay more active than OpenOffice: