“The first version of MySwimPro was simply to give someone a workout, as simple as that. You couldn't log it, there's no profile, there's no analytics, none of this stuff... we just iterated on it over and over and over.”

Ship the dumbest possible v1 — single feature, no profile, free for a year

V1 was a single feature: deliver a workout. No logging, no profile, no analytics, no Apple Watch. They charged nothing for the first year, just listened to the small group using it, and only added a $10/month tier in 2016. The MVP was small enough to ship, the free year was long enough to learn.