Heredis is a genealogy program that is very popular in Europe and probably elsewhere although not well known in the U.S. It is available for both Windows and Macintosh. Now it is on "special" for a few days for a very low price. The following is an announcement I received from the producers of Heredis:
For 4 DAYS ONLY, from Wednesday, July 3, 2013 to Sunday, July 7, 2013 inclusive, Heredis for PC at $10 instead of $ 39.90 available in http://www.heredis.com/en/heredis-pc/ and Heredis for Mac at $10.99 instead of $ 59.99 available in http://www.heredis.com/en/heredis-mac/ or in the App Store: http://appstore.com/mac/heredis/.
Last update: improvement of the Gedcom import/export. If genealogists have created a file with another genealogy program, it is easy to transfer in the Heredis program. The file will be converted automatically in the Heredis version. All data will be open.