GedGap 2.0 has been released by Seven Cookies. GedGap 2.0 is a major upgrade. GedGap is a macOS program (requires OS X 10.10 or later) that is a genealogy research utility – it’s not a a full-fledged genealogy application like Heredis, MacFamilyTree, Reunion, etc. Instead, it analyzes a GEDCOM file, and provides information on things such as sources and quality/confidence of sources (or lack thereof), problems with entries (births/deaths), as well as pointing you towards areas that need more research.
Source: Chad (November 19, 2017) “GedGap 2.0 Released (Update: GedGap 2.1)“, Mac Genealogy.