What problem does it solve? Free users often never convert because in-app upgrade prompts are poorly timed, generic, or pushy. This Skill provides structured frameworks for designing paywalls, upgrade modals, and feature gates that convert free users to paid without damaging trust. ## Core Features & Use Cases - Paywall Design Frameworks: Provides screen component templates (headline, value demonstration, plan comparison, social proof, CTA, escape hatch) for feature locks, usage limits, and trial expirations. - Timing & Frequency Rules: Defines when to trigger upgrade prompts (after aha moments, at genuine limits) and how to cap frequency to avoid annoying users. - A/B Testing Playbook: Ships a references/experiments.md catalog of test ideas covering triggers, pricing presentation, copy, trials, and personalization. - Use Case: When a free user hits the 3-project limit in your project management tool, use this Skill to design the upgrade screen with benefit-focused copy, a free-vs-pro comparison, and a respectful escape hatch. ## Quick Start Ask the assistant to design an upgrade paywall for when free users hit your plan's usage limit, including copy and layout recommendations.