Question
It seems that support for a marketplace could be consider a competitive advantage if it's tightly integrated into the transaction, so should this be built in house, or use a 3rd party app to do this.
What do AirBNB, Fivver, Thumbtack use?
Answer
So we work with many startups and large organizations; from my personal experience it looks like more and more startups particularly are seeking outsourced custom software solutions for their teams. Many startups are now conceived by non-technical founders who need CTOs to develop the prototype, this is where companies like Betabulls.com has been really capturing the market for custom software because of the unique problems some of these startups face - not typically off-the-shelve problems. Airbnb for example did custom web app once they pivoted but they did that themselves otherwise they would have probably hired just like many others do.