Personal Health INtelligence

One number for your health.
Compared with people your age.

PHIN turns your lifestyle, body composition, health-checkup results and daily activity into a single 0–100 PHIN Score, shows where you stand among your age peers, and coaches you every day on what to do next.

Get it on Google Play Try the 30-second check (Korean)

The problem

Millions of adults in Korea receive a national health-checkup report every year, and most stop at the same question: "So what should I actually do?" Fitness apps list numbers; coaching programs are expensive and narrow. Nothing connects measurement to daily behavior for ordinary people in their 30s to 50s.

What PHIN does

01 · MEASURE

Collect

Onboarding survey, body-composition data, checkup values and activity from a phone or smartwatch.

02 · INTERPRET

Score

A 0–100 PHIN Score, a lifestyle-based "body age", and a percentile against your age group.

03 · ACT

Coach

Daily exercise and diet nudges matched to your score, schedule and personality type.

04 · HABIT

Repeat

Home-screen widget and one-tap check-ins designed so that three days a week counts as 100%.

The score is built from five domains:

Lifestyle habits Health-checkup indicators Body composition Diet Exercise & activity

Built with Claude

PHIN is built by a solo, non-engineer founder. The entire product — the Flutter app, the Supabase backend, the scoring engine, the exercise-recommendation engine and the safety system — was designed and coded with Claude Code acting as the engineering team.

Every screen shares a single "redline" safety function: when risk signals appear, PHIN stops praising and recommends seeing a doctor.

What's next

  1. NowAndroid app live in Korea · in-app coaching, PHIN Score, body age and age-peer ranking
  2. NextHealth-checkup report OCR turned into a personalized plan · weekly AI health reports · iOS release
  3. LaterJapanese and Traditional Chinese versions for Japan, Taiwan and Singapore

Company

Name
PHIN (Personal Health INtelligence)
Founder
Blake Lee, Founder & CEO
Based in
South Korea
Started
May 2026
Product
Android app, live on Google Play since September 2026 · iOS in development
Markets
Korea first, then Japan, Taiwan and Singapore
Trademark
PHIN filed with the Korean Intellectual Property Office (June 2026)
Contact
blake@phin.health

PHIN is a non-medical wellness service. It does not diagnose, treat or prescribe. Scores and suggestions are lifestyle-management information; always consult a medical professional about health concerns.