P1 (Pre-Appointment 1)

P1 is a proactive mobile app AI agent assisting patients before their medical visits. It tracks symptoms daily to build an accurate, stress-free health record for your doctor.

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Inspiration

When you finally sit down with a specialist, the critical clinical information is often already gone. Pain that peaked three weeks ago lives only in vague memory. A fluctuating rash was never photographed. Temperature spikes were never logged. The consultation quickly becomes archaeological reconstruction instead of actionable decision-making.

We built P1 (Pre-Appointment 1) to capture what happens between medical visits. Operating under strict constraints ($0 budget, 0 sales, 100% open accessibility), our mission is to eliminate diagnostic blind spots and give patients an objective, structured medical voice without adding financial or technical burden.

What It Does

P1 is your daily clinical companion for the days and weeks leading up to an important medical consultation:

  • 2-Minute Daily Check-ins: Frictionless daily routine tracking pain telemetry, body temperature, and symptom evolution.
  • Interactive 3D Anatomical HUD: A 3D robot mannequin allows patients to pinpoint the exact location, depth, and radiation of pain with zero medical jargon.
  • Connected Hands-Free Voice Logger: Dictate symptoms naturally on the go; speech-to-text automatically transcribes and structures observations directly into the chronological timeline.
  • Deterministic Gemini Clinical Synthesis: Gemini analyzes multimodal logs (photos, vitals, voice transcripts) against medically validated protocols to generate a structured, one-page Physician Briefing ready for consultation day.
  • 100% Privacy & On-Device Control: Built offline-first with local Room Database storage, zero tracking, and self-hostable backend options.

How We Built It

  • Mobile Application: Native Android built in Kotlin with modern Jetpack Compose using our custom Sage Green & Mint Stitch design system.
  • AI Intelligence: Google Gemini (Multimodal) analyzes photos (wound surface progression, redness detection) and structures messy patient observations into clinically sound summaries.
  • Validated Medical Script Engine: Rather than letting generative AI invent unpredictable medical protocols, Gemini parameterizes and executes deterministic, doctor-validated tracking scripts.
  • Storage & Architecture: Offline-first architecture using Android Room DB and a local TimelineRepository, ensuring full usability even without internet connectivity.
  • Zero-Cost Infrastructure: 100% frugal deployment powered by Cloudflare Pages (marketing & web demo), GitHub Actions (CI/CD), and Google Play Open Track.

Challenges We Overcame ($0 Budget & Extreme Frugality)

Building a production-ready medical companion with $0 budget and 0 revenue required engineering discipline:

  1. Eliminating Hallucination: AI chatbots often make up medical advice. We solved this by separating protocol logic (deterministic doctor-approved templates) from multimodal synthesis (Gemini analyzing structured data points).
  2. Zero-Cost Scalability: Running heavy cloud servers was out of the question. By delegating data persistence to the device's local database and using lightweight API micro-reports, our infrastructure cost remains exactly $0.
  3. High-Performance 3D on Low-End Devices: Engineered a lightweight 3D mannequin renderer that runs smoothly across all Android tiers without draining battery.

Accomplishments That We're Proud Of

  • Shipped to Production: Live on the Google Play Store (v1.0.14) and released standalone release APKs on GitHub.
  • Patient-Centric 3D HUD: Created an intuitive anatomical interface that eliminates communication barriers for patients of all ages.
  • Zero-Waste Engineering: Delivered a high-fidelity clinical memory system with $0 infrastructure spend.

What We Learned

Clinicians do not need conversational chatter; they need clean, chronological, objective data. Building for healthcare requires extreme rigor in UX clarity, data visualization, and deterministic AI grounding.

What's Next for P1

  • Expanding our peer-reviewed Medical Script Database in collaboration with practicing specialists.
  • Native iOS version (SwiftUI).
  • Passive biometric integration via Android Health Connect (sleep, resting heart rate, activity correlation).

Project Links & Source Code

Built With

  • 3d-visualization
  • android
  • clinical-ai
  • gemini-flash
  • google-gemini
  • healthcare
  • jetpack-compose
  • kotlin
  • offline-first
  • open-source
  • room-db
  • speech-to-text
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