How do I know when my MVP is ready to ship?

Caroline says MVP "really means something — you need to start building something small and getting feedback from merchants, start to commercialize it." If you keep building more and more, "you don't know whether it's good fit your merchants anyway." Every new product "it's always MVP right, and then we continue to get feedback and fine tune it as we go." She warns against the opposite: "if I've just start to build everything in one go then I can't converge, it's just too much," and "sometimes you build something that's actually very unnecessary."

His test was simple: figure out the one single core thing you're trying to prove. For Butter that was — can someone create and post a plan, have it shown to the relevant people, and get guests to join the plan? Once the app did that, he decided to get it to market, see what the sentiment was and how it performed, and iterate from there. His advice to founders who get fixated on a perfect product: you can sink a lot of money and time into it, so figure out that one core thing, ship that, and iterate from there.