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 guidance for designing paywalls, upgrade modals, and feature gates that convert free users to paid without damaging trust. ## Core Features & Use Cases - Trigger Point Design: Guidance for feature gates, usage limits, trial expiration, and time-based prompts, including timing and frequency rules. - Paywall Screen Framework: A component checklist covering headline, value demonstration, plan comparison, pricing, social proof, CTA, and escape hatch, with ready-to-adapt layout templates. - A/B Testing Playbook: A references/experiments.md catalog of experiments across triggers, design, pricing presentation, copy, trials, personalization, and frequency capping. - Use Case: When a free user hits the 3-project limit in your project management tool, generate a usage-limit paywall with specific copy, a free-vs-pro comparison, and a non-pushy 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.