OmniOutliner Pro vs TAO Outliner
ATPM has a comprehensive comparison review of Mac outliners TAO and OmniOutliner Pro. Like all personal productivity tools the choice of an outliner is highly personal and this article does a good job of highlighting the differences.
“There is one area of outlining capability where TAO is supreme. For some reason, Omni Group decided not to implement clones and internal hyperlinks. Remember, this is version 3 we are talking about.A clone is a copy of a header, very similar to aliases in the Finder. The difference is that when you make a clone, you are making an identical twin. Change one and the other changes. Delete one and the other remains.
Hyperlinks are common among ATPO power outliners, but OmniOutliner doesn‚Äôt support them. TAO‚Äôs links aren‚Äôt as robust as in other power outliners. You can only link from a header to another header. But the provision for doing this with a mouse is elegant.”