NewsNinja is a news reader and aggregator for Apple platforms, including iOS, iPadOS, macOS, and visionOS. It consolidates content from RSS feeds, social media platforms such as Reddit, X, Mastodon, Bluesky, and Hacker News, video content from YouTube, newsletters from Substack and Medium, and podcasts. The application also integrates personal data, including calendar events, weather forecasts, and reminders, into a customizable Today dashboard. The application includes a built-in reader mode that removes ads, pop-ups, and other web clutter. Users can choose from five visual themes. The Stories feature groups articles covering the same event from multiple sources into a single overview with an AI generated title and summary. AI tools provide summaries for videos, articles, and podcast episodes, and can translate content into different languages. Comments on Reddit and Hacker News can be summarized to gauge discussion sentiment. A fact-checking tool is available for headlines and social media posts. Podcasts can be listened to, downloaded, transcribed, and summarized within the app. Social media feeds and comments can be read without requiring a login. Typical use cases include following industry news, tracking YouTube channels with video summaries, reading Reddit discussions, and listening to podcasts. The workflow often begins with the Today dashboard to review news, weather, and calendar items. Users can browse curated feeds, use Stories to see multiple perspectives on a topic, and read articles in the reader mode. The Stories feature is part of the NewsNinja+ subscription. Reading progress syncs across devices via iCloud. A Safari extension is available for summarizing content from other applications.