... instead of just tracking what you did? Comment from Shahana Rasheed(@shahana_rasheed): The framing is compelling, "why you failed" is a much more honest starting point than another streak counter. But I'll ask the obvious question: Fabulous, Finch, Habitica, Future, and a dozen AI coaching apps have all pitched some version of "we don't just track, we guide." What's the actual differentiator here? Is it the leveling mechanic, the AI recommendation logic, something ... ... minute 17. That means your aerobic system is adapting. Push through it." That's not coaching copy it's expectation-setting that removes the #1 reason people quit: unexpected discomfort. 3. Vex uses your actual data, not a persona. Finch