Barbershops appear to be their main niche, but they do have a similar focus on others.

From their page.

Resurva for Barbershops

Resurva for Room Booking

Resurva for Conferences

Resurva for Salons

Resurva for Spas

Resurva for Massage Therapists

Even with that on the home page, not clear how much they are really targeting those businesses. Could be a way to gauge interest in other verticals. The pages are all the same and the testimonials from barbers.

I hope soon, it will be Resurva for dentists and doctors.

Maybe they will call it Zocdoc.

I hope they succeed just for the verb potential :)