“Fitness is easy where there's a natural retention metric which is workouts... everything that we build every feature that we contemplate inside the app is all aimed at incremental workout completions. High workouts equals high LTV so these things lead to LTV as an output metric.”

Pick a Behavioral North-Star Metric That Directly Predicts Revenue — For Ladder It Is Workout Completions

Instead of optimizing for LTV directly, Ladder found the single behavioral metric — workout completions — that is both within their control and highly predictive of retention and revenue. Every product decision runs through the filter of 'does this increase incremental workout completions?' Finding your app's equivalent (meditation sessions completed, recipes saved, journal streaks) makes product roadmaps self-prioritizing.