PropertyShark

Pros: As a Senior Analyst, I use Co-Star, Reonomy, & PropertyShark all at once. Used to have RCA as well. PropertyShark is my number one platform out of all those and most used as well. Been a customer for over 5 years now. For NYC - I can find almost everyone with the Real Ownership option. The property and building description is mostly on point. Like 99% of the time actually, the few times that aren't is mainly due to a owner changing something and no one really caught on. I love that I can easily access deeds, comps, permits, violation and even download the files which makes my work much easier. VS Reonomy which some buildings don't even have building information at all. Compare to Co-star they both have their pros and comps, co-star is heavily into REITs, bigger companies, etc as Propertyshark I can easily find even condominium's owners and informtion. The research on it is well done. Another thing to note their zoning and FAR information is far superior compared to Co-Star and others. Proeprtyshark has each lot color coordinate and a breakdown on current Allowable Building and as it. Maybe once zoning was delayed in updating but that is due to the city quickly changing zoning information to add incentive to developers. Propertyshark also has additional information such as roof height, renovated years, year built, construction type, etc. The links to Certificate of Occupancy is a huge bonus and other NYC department information. Regarding information outside of NYC it is just as good, rural areas can be a hit and a miss. but that is mainly due to the county or city's lack of record keeping compared to the major cities. I used PropertyShark around 90% of the day, with Co-star around 8% and Reonomy 2%. I used to have RCA as well, which I rarely used

Cons: Barely any cons honestly. Maybe the only thing that can be annoying is i can not use it across multiple devices all at once.
Desktop , Tablet and phone. which is understanding on their part.

Overall: I used it more than Reonomy, co-star and RCA. I highly recommend it especially for research and analyst.

Pros: Accurate data, phone numbers of property owners, loan details, foreclosure data, taxes, photos, school districts etc.

Cons: The look and feel are not very modern, but it's still ok to use.

Overall: Great resource for real estate professionals and homebuyers. it has good data, many properties listed and a lot of information about them.