Mobile browsing on my iPhone feels slow and cluttered because of ads, trackers, and social widgets. I want an iOS app with a Safari content blocker that cleans this up. The app should work as a simple control center: let me toggle categories (ads, trackers, social widgets) on or off and add sites I want to support to a whitelist. All blocking rules must be stored and updated locally in the app—no servers or background calls—so it works fully offline.