ZOE vs Firefly Health
Side-by-side comparison of AI visibility scores, market position, and capabilities
ZOE is a health science company using large-scale nutritional studies (PREDICT), microbiome sequencing, and AI to deliver personalized nutrition programs; co-founded by scientist Tim Spector and Christopher Gardner; raised $115M+ total;
About
ZOE is a health science and consumer technology company headquartered in London, United Kingdom, co-founded by Professor Tim Spector (King's College London epidemiologist and author), Jonathan Wolf, and others. The company emerged from the PREDICT studies — the world's largest nutritional science research program, which enrolled over 1,000 participants to study how different individuals respond to the same foods based on their gut microbiome, blood fat response, blood sugar response, sleep, and exercise patterns. The research established that personalized nutrition — rather than one-size-fits-all dietary guidelines — is scientifically grounded, as the same meal can produce dramatically different metabolic responses in different people.
Firefly Health operates a virtual-first primary care practice with dedicated care teams, offering comprehensive primary care, mental health, and chronic disease management through a mobile app.
About
Firefly Health delivers virtual-first primary care through a model built around dedicated care teams — a physician, health coach, and care coordinator assigned to each patient — rather than the on-demand provider matching used by most telehealth platforms. Patients access their care team through the Firefly app for video visits, messaging, lab result review, specialist referrals, and care plan management, with the team maintaining longitudinal knowledge of their health history and goals.
AI Visibility Head-to-Head
Key Details
Capabilities & Ecosystem
Capabilities
Also Compare
Track AI Visibility in Real Time
Monitor how your brand performs across ChatGPT, Gemini, Perplexity, Claude, and Grok daily.