> Don’t you pay TurboTax?

Yes, but the cost is significantly less. When I first moved to the US I used a tax accountant because I didn't know any better and it cost me ~$500 a year (this was in New York). I now file using either TurboTax or TaxAct and my costs are typically in the $60-70 range depending on which tier of service I select.

Is it more work? Arguably yes, but I enjoy the freedom of being able to do it all from the comfort of my sofa and the tools have improved to such an extent that it rarely takes me more than half an hour start-to-finish.

Real estate is obviously a very different proposition to tax filing, but if disruptors can cut out some of the fat/overhead to bring the costs down I think it would be appealing to a wide range of people.