No, not at all. Appraisers provide an independent opinion of value based on recent sales of similar homes in the same geographic area. They apply a formula to increase or decrease their opinion of value based on the home's features, age, condition, location and so on. But they base their opinion on tax records, and sometimes use the multiple listing service to learn more detailed information about the houses they use as 'comps', but never Trulia or Zillow. That's the reason it is always best, if you are trying to determine the value of your home without paying an appraiser, to contact a real estate agent or broker. We are not appraisers and do not pretend to be, but we CAN look at recent sales for you on the Multiple Listing Service and give you OUR opinion. It's not an appraisal, of course, but it does help.