# RevenueCat Documentation — Welcome & Account Setup > Platform overview, billing and account settings, account security, and compliance. Part of the RevenueCat documentation for building in-app purchases and subscriptions. Each link below points to the Markdown version of a page in this section. For every other section, see the root index at [llms.txt](https://www.revenuecat.com/docs/llms.txt). For the complete documentation as a single Markdown file, see [llms-full.txt](https://www.revenuecat.com/docs/llms-full.txt). ## Welcome & Account Setup - [Welcome to RevenueCat](https://www.revenuecat.com/docs/welcome/overview.md): Build, Analyze, and Grow In-App Revenue with Ease - [Billing and account settings](https://www.revenuecat.com/docs/welcome/set-up-revenuecat/account-management.md): Managing your account and changing plans - [Data & Compliance](https://www.revenuecat.com/docs/welcome/set-up-revenuecat/data-and-compliance.md): RevenueCat's data and privacy policies - [HackerOne Vulnerability Disclosure Program](https://www.revenuecat.com/docs/welcome/set-up-revenuecat/hackerone.md): Claim bug bounties by submitting vulnerabilities to our program - [Account security](https://www.revenuecat.com/docs/welcome/set-up-revenuecat/security.md): Two-factor authentication, OAuth tokens, and SSO for your RevenueCat account