If you're building a product with paid tiers and need to nudge users to upgrade without being annoying, this covers the full playbook. It walks through trigger timing (feature gates, usage limits, trial expiration), teaches you how to structure the actual paywall screen (headline, value demo, escape hatch), and includes mobile-specific patterns for iOS and Android. The timing guidance is solid: show paywalls after users hit value moments, not during onboarding when they don't care yet. It also covers what to A/B test and when to back off so you don't train people to ignore your prompts. Useful if conversion rate optimization feels like guesswork and you want a framework.
npx skills add https://github.com/sickn33/antigravity-awesome-skills --skill paywall-upgrade-cro