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Isabel Symptom Checker

iPhone / iPad
  • Health & Fitness
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Isabel Symptom Checker™ - use the symptom checker used by doctors

The Isabel Symptom Checker puts the world’s medical knowledge at your fingertips. It will change the way you speak to your doctor forever.

For the first time, you can access an online tool previously only made available to the medical profession. Doctors and nurses around the world acknowledge the Isabel diagnostic tool as the clear leader in its field. Using the latest searching technologies, the Isabel Symptom Checker allows you to research possible causes for multiple symptoms based on everyday language.

“Simply type a brief description of your symptoms into a text box to get instant,
evidence-based insight into what is wrong with you.” - Business Traveller, March 2015

“After trying several online symptom checkers, he found Isabel to be the most useful.” Wall Street Journal, July 2013

“The online ‘doctor’ even GPs swear by” - Daily Mail, March 2013

• The only diagnostic tool to understand multiple symptoms in everyday language
• Searches database of over 6,000 diseases and conditions
• Time sensitive and common diseases highlighted
• Results focused by age and gender
• Results can be refined by travel history
• Links to medical knowledge from a list of web sites
• Results can be emailed directly to your doctor.

This app requires internet access.

This app provides access to the Isabel Symptom Checker system available on the web at

Isabel helps you research and understand your symptoms so you can have a better discussion with your doctor about the possible diagnoses. The Isabel Symptom Checker is based on the professional Isabel diagnosis checklist system. The system has been modified and optimised for use by patients.

**Daily usage limit: It has been possible to make this app available on a free to use basis for individual patients due to a grant from the Isabel Medical Charity. To prevent unauthorised use by healthcare institutions there is a daily limit allowance of 10 searches. Professional users should use the Isabel dx app intended for professional use. **

To get more information please visit our website at