Superphonic

Superphonic is a solo-developer iOS podcast app built by Philip Su, an ex-Meta and ex-OpenAI engineer, with an aggressive take on AI features and playback control. It's positioned as "for true podcast fans and power listeners", and the app's willingness to push playback speed to 5x in 0.1x increments backs that up.

Origins

Philip Su built Superphonic as an independent project after leaving OpenAI, drawing on the AI infrastructure work he'd done there. The app launched on the App Store and has been iterated aggressively across a small number of releases; the pace is much faster than the older long-running iOS players in this directory, which is what you'd expect from a solo developer with a strong AI toolkit.

What it does

Superphonic runs a modern player with a specific set of unusual choices. Playback speed goes up to 5x in 0.1x steps, with per-podcast speed overrides so you can keep an interview show at 1.4x and a lecture series at 2.8x without having to remember to switch. Car Mode gives you no-look controls for hands-free interaction while driving, and CarPlay integration is polished.

The AI features are the app's second signature. Superphonic generates on-device transcripts for episodes that don't ship them, AI-chapterises long conversational shows into navigable segments, and offers a "reactions" system for lightweight in-app engagement with a show or an episode. The free tier meters the AI features (first few minutes of each transcript, first five chapters per episode); Premium (~$3.99/mo, no annual plan) unlocks unlimited access.

Where you get it

iOS App Store, Mac App Store (macOS 13+ on Apple Silicon), and visionOS 1+ on Apple Vision. Sign-in supports Google, Twitter/X, Facebook, or phone/SMS. No Android version.

Current stance

Actively developed by a solo engineer with unusually fast release velocity for the category. If you want a similarly AI-native player with a much heavier learning-oriented feature set, Snipd is the natural comparison. If you want a similar Apple-ecosystem player from an older independent developer, Overcast covers the same "iOS-only, opinionated" ground with a fifteen-year track record.