iFamily

iFamily for Mac is a genealogy application for people who think differently. Whereas other genealogy software tends to emphasize the family unit, this software's focus is on each individual person. This distinction is subtle and is a feature of iFamily for Mac. In iFamily for Mac you can see at a glance whether an individual has more than 2 parents or more than 1 spouse. Parent-child relationships may be natural (the default), step, adopted or foster relationships. iFamily for Mac is simple to use and easy to navigate - it uses the latest Apple technology such as Cocoa and Core Data.

Limitations:

10-day trial, export to GEDCOM disabled