Event
LA Hacks
Team
Martin Ha
PRISM is a connected wellness app built at LA Hacks 2026 that combines personal health tracking, community sharing and live local events in one place. Built by Martin Ha, PRISM tackles the isolation of solo health tracking by connecting how you feel, what you share, and what is happening around you.
What it solves
Most health tracking apps are siloed. You log your steps, track your heart rate, maybe share a post, but none of it connects to the community around you or the events happening nearby. People already share progress and look for activities around them, but those stories rarely sit next to real location context or private AI that respects the moment they are in. PRISM brings all three together without forcing everything through a generic cloud chatbot.
What it does
PRISM lets users publish image-based progress posts to a community board, browse upcoming and past community events sourced from Ticketmaster and Eventbrite merged in one map, and get on-device AI suggestions and wellness summaries tied to their health data. The app works in local-first mode without requiring a constant cloud connection, keeping personal health data private and fast.
How it works
PRISM is built in React Native with Expo and uses ZETIC Melange to run a Gemma 4 class model entirely on-device for post intelligence, wellness copy generation and advisor-style insights. Health data is read from Apple HealthKit on iPhone. Cloudinary handles image uploads and on-the-fly transformations for feed-optimized delivery. Firebase Cloud Functions aggregate and geocode events from multiple providers into a single unified JSON contract for the client. On-device inference is treated as primary for all sensitive language generation, with cloud used only for media and optional sync.