https://docs.google.com/spreadsheets/d/1Fqrb6yrmTn...
I'm in the middle of comparing Everbooked, Mashvisor, and AirDNA (may add Airnalytics). Spreadsheet is brief now but I will add about a dozen homes this weekend so you can use your own judgment and decide whose estimates seem most reasonable to you! Already I can tell they're quite seriously deviating.
They're all quite expensive (pricing in spreadsheet) so I think the greatest FREE benefit from each is this:
Mashvisor: Can see their estimated annual revenue for homes without paying
AirDNA: Can see estimated occupancy by performance percentile by city (i.e. what an average home's occupancy is, what a top 25% home's occupancy is)
Everbooked: Can see estimated occupancy by size of home, by month, by city (so pretty granular!)
If you're trying to evaluate a potential home, I think you can triangulate pretty well by using all 3 services. If Mashvisor & Everbooked's predictions indicate a home would have to be a top-performer according to AirDNA, I usually downgrade my occupancy or ADR projections. I want to assume all potential homes will be average performers, and that way if they do perform exceptionally (or rather, if I as a host perform exceptionally) it can be icing on top of the cake.
To me, the next interesting step is coming up with a systematic grading system and running the contents of the MLS through it periodically, so I can spend my time evaluating the top 10% of opportunities.