The two programs which Clooz has direct read and write capability to interface with are Legacy Family Tree and Family Historian. Family Historian maintains data in memory until you save the file, so Clooz does put up a reminder to save the Family Historian file before proceeding with imports or exports. So there is one small manual step there, but Clooz steps you through it.
RootsMagic is somewhat similar, but does not allow Clooz to write data directly to the database. Rather, a special GEDCOM file is produced by Clooz and has to be manually imported into RootsMagic. It is special in that it includes record identifiers so that RootsMagic knows whether the person the data is for is a new person (to be added), or already existing in its database (thus avoiding duplication of people records). It’s just a little bit trickier to use, but can be as effective.
Clooz is not permitted to have direct access (read or write) to FamilyTreeMaker, so all data transfers must be done via GEDCOMs. The process of importing a GEDCOM into FTM does provide some support for identifying people already in the database (to avoid duplication), but this requires the user to be very attentive and examining all the details. Clooz will adjust for some of the non-standard aspects of FMTs use of GEDCOM files.
Using a generic GEDCOM, data can be imported from or exported to nearly all other genealogy programs. However, duplication of people may result depending on the program.
Additional interface improvements are planned for the future.