Powder Theory
Boulder, COContact
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Work · № 01

Page Side

Companion app for Phish fans.

Platform
iOS
Status
in beta
Started
2026
Built in
Application Studio
iOS

Page Side keeps track of the shows you have seen, the songs you are still waiting on, and what the band might play next. It follows a run as it happens, measures your history against the full catalog, and adds a layer of games for the people you go with.

It reads the Phish.net catalog, with LivePhish and Phish.in filling in per-song timings, and keeps a local copy on the device so the numbers still work when the venue's cell service does not. It is built in React Native; the beta is iOS-only, with Android to follow.

The core is a query engine we call the Brain, and the interesting part is what is missing from it. A language-model tier was built and then cut before beta: plain database queries answered the same questions instantly, for free, and without ever being confidently wrong. Predictions run on a weighted probability model, not a language model.

The venture behind it

Built inside Application Studio.

Availability