I have both. Ancestry has index for 1920, 1850 and before and is working on the 1930 census as well as the AIS indexes. Genealogy has 1870, 1900 and is working on 1910 indexes. On things other than census, ancestry has more databases including historical newspapers, british parish records but if you want everything it will cost you around 200. Genealogy has a local history database of the old county histories from 1880-1920 but that costs you 80 dollars and is not included in any package. If you want any of their packages you have to buy the Family Tree Maker, even if you already have it or another program. Their customer service person told me to just throw it away if you don't want it. Their package is also about 200 dollars. Julia Coldren-Walker