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Gravitas Crunch: Turn sources and feeds into a personal radio with on-device AI

https://www.youtube.com/watch?v=xag31FaFg2U
1•solSpeedofLight•1h ago

Comments

solSpeedofLight•1h ago
I built Gravitas Crunch for iPhone.

It turns the sources you follow into a personal radio station. The app reads from real sources, distills them into clear narration, and plays them back as a continuous stream.

The product is built around on-device AI, so the experience is not dependent on metered cloud usage. The reason you can press Play is because the AI is running on your iPhone.

Features include:

- Gravitas Radio for feed-based listening

- Research Assistant for source-grounded takeaways and drilldown

- Discover Assistant for finding curated articles and feeds

- Focus mode for prompting an entire source, like a full article, PDF, or EPUB, in one context-aware session

- imports for articles, feeds, PDFs, EPUBs, and more

- high-quality narration with PocketTTS

- a growing Audiobook mode for long-form sources

Demo: https://youtu.be/xag31FaFg2U?si=07xgPOKPMkCfRFTM

TestFlight: https://testflight.apple.com/join/pqmbzjMa

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