I just bought a home a few months ago, so I went through your process to see what results I got. It offered a 30-year loan at 4.0%. Is that really possible? It also quoted me $2900 in closing costs. I think my actual closing costs were more like $10k! If so, I wish your app had been around 6 months ago. But I'm skeptical you could actually deliver on that.
Also, as a self-employed freelancer, the paperwork to qualify for a loan was immense. If you can reduce that, that'd be awesome too.