Gravitas Crunch

Gravitas Crunch is a private research workspace with Robot Radio built in, and experiences tailored for iPhone, iPad, Mac, and Apple Vision Pro. Follow real sources, turn them into clear takeaways, and listen to a living broadcast generated from the feeds you actually follow. Designed with a rich Liquid Glass interface, Gravitas Crunch brings reading, listening, and research together in a single polished workspace that feels fast, tactile, and alive. Many Gravitas Crunch features require an Apple Intelligence–enabled iPhone with Apple Intelligence turned on. Import articles, PDFs, EPUBs, feeds, videos, papers, and more. Gravitas Crunch extracts text, preserves context, and helps you move from discovery to understanding without bouncing between disconnected tools. With Robot Radio, your saved sources become a real-time listening experience. Hear a high-level broadcast generated from the stories that matter to you, then drill all the way down into the original articles, research, and source material with a tap. Use Discover Assistant to find new sources worth following in Gravitas Crunch. Save them for offline reading, listen with high-quality on-device text-to-speech, and move fluidly between reading, summarizing, asking questions, and listening in one place. Crunch long-form content in three modes: Executive — fast, high-level takeaways Technical — methods, assumptions, and deeper detail Study Guide — concepts, definitions, and review-ready structure Need to go deeper? Ask questions about the current source, then jump straight to the passage behind the answer. Focus Mode Apply a focused prompt to an entire source, then continue with follow-up questions inside the same context. Gravitas Crunch is built for grounded research, not generic AI chat. Key Features Robot Radio for feed-based listening Private, on-device analysis on supported Apple Intelligence devices Citations with one-tap jump back to the source Offline saves for articles, PDFs, EPUBs, and more High-quality on-device voice playback for long-form listening Feed support for RSS, Atom, and Substack Clean reading experience for long-form content Focus Mode for source-wide research and follow-up questions Discover Assistant optimized for supported sources A distinctive Liquid Glass interface for reading, listening, and navigation Works Well With Medium RSS / Atom EPUB Ghost WordPress Podcasts Substack Popular programming sites arXiv DOI PubMed Wikipedia PDF LaTeX YouTube Reddit Vimeo and more Privacy No account required. Your library stays on your device.