Do you know if there are any features included in NeoOffice from AppStore but not included in the free version? I suppose not, because as OpenOffice is free software, NeoOffice must be too, so they should release their full work for free.
NeoOffice pay version vs free version
neooffice
Best Answer
From their website:
The open source license that is used for the NeoOffice source code (GPL) doesn't require that the software be provided for free. It just requires that the source code be made available for free. NeoOffice do offer their source free, but it obviously requires a certain amount of skill and time to compile.