# usage.pro > AI-optimized mirror of usage.pro containing 4 pages totalling 1,470 words of clean markdown content, structured data, and semantic HTML. Original source: https://usage.pro/. Last updated: 2026-05-01T13:02:57.596Z. Each page is available as HTML (with JSON-LD structured data) and Markdown (text-only, ideal for LLMs and RAG). ## Homepage - [Widgets](/site-root.html): #1 app for monitoring the activity and performance of your Apple devices. Available for macOS, iOS, and iPadOS. (183 words) ## Articles & Blog Posts - [Why is it necessary?](/mac/helper/index.html): #1 app for monitoring the activity and performance of your Apple devices. Available for macOS, iOS, and iPadOS. (78 words) - [Subscriptions](/terms/index.html): #1 app for monitoring the activity and performance of your Apple devices. Available for macOS, iOS, and iPadOS. (982 words) - [Personal Information](/privacy-policy/index.html): #1 app for monitoring the activity and performance of your Apple devices. Available for macOS, iOS, and iPadOS. (227 words) ## Resources - [Full Page Index](/index.html): Browse all cached pages with rich metadata - [About This Cache](/content/about.html): Methodology, technical details, and usage guidelines - [XML Sitemap](/content/sitemap.xml): Machine-readable sitemap for crawler discovery - [Robots.txt](/content/robots.txt): Crawler directives