Talk to a local REALTOR with knowledge of your area and have them view the home in person to give you the best idea of the market trends based on the condition of your home. The online evaluators are only as good as the knowledge it has of your particular home... They do not walk through it and factor in the details of the home to see the true value. There are many factors that go into this and keep in mind an appraiser will only look at the last 6 months in most cases and they do not look at the current active homes on the market. Both of these come into the factor of what your home will sell for in a current market.
If you are hoping to buy a house, you likely have a budget in mind. Hopefully, that budget includes fees that come with the process, not just the purchase price. The good news for buyers is that they aren't directly responsible for paying their agent. Agent fees usually fall on the seller.