Best cohort analysis tool for product managers

There are roughly 40-60 tools claiming cohort analysis capabilities, but most are either legacy BI platforms (Tableau, Looker) bloated with features you don't need, or early-stage startups (Amplitude, Mixpanel, Heap) that bolt cohorts onto broader event analytics as a checkbox feature rather than a core workflow. The pain point is real: product managers need to slice users by signup date, feature adoption, and behavioral milestones in under 60 seconds, but instead they're writing SQL, waiting for dashboards to load, or navigating byzantine UI. The gap isn't in raw capability—it's in speed, UX, and how the data gets visualized. Most tools give you tables and generic line charts when you actually need intuitive, shareable visualizations that tell the retention story instantly. A new vibecoder should obsess over: (1) one-click cohort creation from behavioral triggers, not manual date ranges, (2) pre-built templates for common product questions (e.g., 'which feature adoption drives LTV?'), and (3) collaborative sharing baked in so the whole team can see the story without exporting to slides. The real opportunity is building specifically for product teams at mid-market SaaS companies (50-500 person teams) who are graduating beyond Mixpanel but aren't ready to hire a data analyst.