Blue Apron: CAC, LTV, and the Retention Problem

Blue Apron went public in 2017 at roughly a $2 billion valuation, and within a year the stock had lost most of it. The pitch was appealing and the growth was real, but a structural tension sat in the footnotes the whole time. Acquiring a meal-kit customer was expensive, and customers tried the service, enjoyed the novelty, and then churned fast. The cohort data told the same story every time, heavy early revenue followed by a steep falloff, and the company was ramping marketing into its IPO exactly when that data should have forced a rethink.

For any founder running a subscription or repeat-purchase business, this case sharpens the single most important diagnostic in the model. It asks whether you actually know your numbers by acquisition channel, which channels flatter you on the surface while hiding the worst retention curves, and what month your customers really leave. The specific ratio and threshold that separate healthy growth from a slow leak are the payoff inside.