Event
LA Hacks
Team
Jonathan Tam, Keanu Thakalath, Tianlin Situ
FocusChart is an on-device ADHD diagnostic support tool built at LA Hacks 2026 that turns real-time parent observations into clinical insights for doctors. Built by Jonathan Tam, Keanu Thakalath and Tianlin Situ, FocusChart tackles one of the most broken parts of neurodevelopmental diagnosis: parents trying to recall six weeks of their child's behavior from memory in a 55-question survey.
What it solves
ADHD diagnosis relies on parents accurately describing their child's behavior over the past six weeks. Most cannot. They forget details, miss patterns, and struggle to recall specifics when sitting in the doctor's office. The result is delayed or inaccurate diagnoses for children who need support. FocusChart replaces the memory-dependent survey with continuous, structured observation over time.
What it does
Parents log incidents involving their child by talking to a conversational voice agent that probes for clinically relevant details. After six weeks, they bring FocusChart to the doctor's office. The app creates an end-to-end encrypted tunnel directly to the doctor's device via QR code. Gemma then analyzes all logged experiences against the standard Vanderbilt ADHD assessment on-device, giving the doctor a comprehensive data-driven report instead of whatever the parent can recall in the moment.
How it works
FocusChart is built in SwiftUI and uses ZETIC Melange to run Gemma 4 entirely on-device for private, secure analysis of patient data. An ElevenLabs conversational agent handles structured voice logging, probing parents for details that matter clinically. A Node.js and Express relay with MongoDB handles the encrypted short-lived connection between the parent's phone and the doctor's device. No patient data is ever sent to a third party cloud for analysis.