Ubie
Free AI symptom checker developed by doctors.
Ubie is a free, clinically supervised symptom checker that delivers personalized reports quickly. Best for initial symptom exploration, but never a replacement for a doctor.
- Individuals with mild or concerning symptoms seeking initial guidance
- People wanting a free second opinion before seeing a doctor
- Patients preparing for a doctor appointment with a symptom summary
- Health-conscious users exploring possible causes of persistent issues
- Emergency situations requiring immediate medical attention
- Diagnosis confirmation or replacement of professional medical advice
- Chronic disease management or treatment monitoring
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In short
Ubie — Free AI symptom checker developed by doctors. Best for Individuals with mild or concerning symptoms seeking initial guidance, People wanting a free second opinion before seeing a doctor, Patients preparing for a doctor appointment with a symptom summary. Free to use.
Viability Score
How likely is Ubie to still be operational in 12 months? Based on 4 signals — momentum (how recently it shipped), wrapper dependency, revenue model, and web presence.
Last calculated: July 2026
How we score →Key Features
- Free 3-minute symptom questionnaire
- Personalized report with possible causes
- Questions customized by sex, age, history, lifestyle
- Advises when to see a doctor
- Lists potential treatments
- Start with symptoms, diseases, body parts, or specialties
- Doctor's Note feature for expert Q&A
- Based on 50K+ clinical data sources
- Supervised by 50+ medical experts
- Trusted by 900+ medical institutions
- No credit card required
About Ubie
Ubie is a free AI-powered symptom checker that helps users identify possible causes of their symptoms and decide when to see a doctor. Designed for anyone experiencing mild or concerning symptoms, it uses a 3-minute adaptive questionnaire that accounts for biological sex, age, medical history, and lifestyle. The AI is built on over 50,000 clinical data sources and supervised by 50+ medical experts worldwide. Key features include a personalized report with possible causes, treatment information, and guidance on when to seek care. Users can start with symptoms, diseases, body parts, or specialties. The tool also offers a Doctor's Note feature where medical professionals answer health questions publicly. Ubie is trusted by over 900 medical institutions and has been recognized by Newsweek as one of the World's Best Digital Health Companies. Ubie prioritizes safety and transparency, with a published accuracy rate of 71.6% top-10 hit accuracy in a peer-reviewed study, outperforming competitors averaging 60%. It is free with no credit card required and no subscription pressure. Compared to other symptom checkers like WebMD or Ada, Ubie stands out for its strict clinical supervision, academic grounding, and focus on reducing unnecessary panic. However, it is not a substitute for professional medical diagnosis and should not be used in emergencies.
Behind the Verdict
Ubie serves a clear niche: helping people who are unsure about their symptoms get a structured, medically-informed list of possibilities before deciding to see a doctor. The 3-minute questionnaire is genuinely smart, adapting questions based on sex, age, and history. We'd reach for this when you want a second opinion on a new symptom that's not an emergency. Where it shines is its academic backing — the 71.6% accuracy figure is better than many competitors, and the supervision by 50+ doctors adds credibility. The Doctor's Note feature is a nice bonus, letting you see real physician answers to common questions. But it has limits. It's not for emergencies — the disclaimer is clear. It also can't replace a doctor's diagnosis; the report is just a list of possibilities. If you have a chronic condition, this won't help manage it. And you do share personal health data, which may give privacy-minded users pause. Compared to WebMD's symptom checker, Ubie feels more rigorous and less alarmist. Ada is a close competitor, but Ubie's published accuracy study and institutional trust (900+ hospitals) give it an edge. For someone wanting a free, quick, and doctor-vetted symptom check, Ubie is a solid choice.
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Use Cases
- Check your symptoms in 3 minutes to see possible causes and when to see a doctor.
- Prepare for a doctor's appointment by generating a symptom report to discuss.
- Explore common diseases by learning about symptoms and associated conditions.
- Use Doctor’s Note to get answers from medical professionals about health concerns.
- Verify if a symptom matches a condition you suspect, like lupus or diabetes.
Limitations
- Ubie does not provide definitive diagnoses; it only suggests possible causes based on user inputs.
- The tool may not cover rare conditions or complex cases.
- It is not intended for emergency use and should not replace a healthcare provider.
- There may be limited symptom coverage outside common conditions.
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