LineaJ (pronounced "lineage")
Personal and family health records, on your device
LineaJ (pronounced "lineage") launched on June 18, 2026 with 6 votes, #2,066 of 22,647 launches that month and more than 75% of that year's launches.
What it does
LineaJ helps you organize your medical history, family health patterns, and lab results — then walk into appointments informed instead of powerless. Built solo, on-device by default. Analyzes your data against government and peer-reviewed sources, generates priorities, and populates a comprehensive report you can bring to your doctor. Born from my own experience — hours of research to connect health issues no one had flagged. LineaJ makes that process easy enough that anyone can do it.
Family health history is the most powerful, lowest-cost predictor of disease most people own — and almost nobody actually uses it. In the CDC's 2004 HealthStyles survey of 4,345 U.S. adults, 96.3% said knowing their family health history was important to their health — yet only 29.8% had ever actually gathered it. When researchers repeated the survey with 5,258 people in 2014, after a decade of national awareness campaigns, collection had risen only to 36.9%, and people knew about the same or less than before. Even alongside modern genetic testing and polygenic risk scores, NIH and CDC reviews find that family health history remains the strongest predictor of risk for many conditions — and…from lineaj.io
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