One of the things we've really focused on is not using IP and offering cookieless tracking, so the tool is really great for people who are concerned about protecting their users privacy (there's other features to support that too, like custom masking of html elements, though that's powered by a library we're using).

Otherwise, at the moment I'd say Fullstory and Hotjar are both definitely more feature-packed, having been around a lot longer. Squeaky is faster and, though it's subjective, the UX is considerably better imho :)

We've got big plans going on in the background to offer predictive analytics too, but that's very much a work in progress!