# Paywall Anatomy
> AI apps make decisions about access, subscriptions, consent and attention through small screens that are easy to overlook.

## Entries
- [The Metered Limit: How AI Apps Communicate When Free Messages Run Out](https://paywall-anatomy.pages.dev/metered-limit-ai-apps/): A metered limit gives users a defined amount of free activity before access is restricted, slowed or offered through a paid tier.
- [Subscription Trial Reminders: When Apps Explain an Ending Trial and When They Stay Silent](https://paywall-anatomy.pages.dev/subscription-trial-reminder-design/): A trial reminder should tell subscribers when their free access ends, when payment is expected and how to cancel before renewal.
- [Age Gates in Mobile Apps: Checkbox, Birth Date and Store-Level Rating Explained](https://paywall-anatomy.pages.dev/mobile-app-age-gate-design/): Mobile apps communicate age restrictions through several patterns, including self-declaration checkboxes, birth-date entry and age classifications managed at.
- [AI App Notification Copy: A Glossary of Re-Engagement Phrases and Their Implications](https://paywall-anatomy.pages.dev/ai-app-notification-copy-glossary/): AI app notifications use familiar phrases such as "We miss you," "Your conversation is waiting" and "Discover something new" to encourage users to return.
- [Designing an AI App Cancellation Flow That Clearly States the End Date](https://paywall-anatomy.pages.dev/ai-app-cancel-flow-end-date-design/): A clear AI app cancellation flow tells users when their subscription ends, whether access continues until that date and whether another payment is scheduled.
- [Free and Premium in a Character-Chat Platform: Understanding the Visible Tier Boundaries](https://paywall-anatomy.pages.dev/character-chat-free-premium-boundaries/): Character-chat platforms can combine text conversations, fictional characters, voice content and short-form video within a single product, while presenting a.

## About
- [About Paywall Anatomy](https://paywall-anatomy.pages.dev/about/): what the site covers and how entries are made

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