Experiencing difficulty with walking, balance, speech, muscle weakness, or writing?

Understand what your body might be telling you, for free. Use the world’s most accurate symptom checker, built by doctors. 1

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If you’ve been experiencing symptoms like:

  • Tripping while walking or difficulty staying balanced
  • Slurred speech or trouble speaking clearly
  • Muscle weakness or coordination issues
  • Difficulty writing or performing daily tasks

You’re not alone, and it’s worth understanding why.

  • 97% advice accuracy, comparable to human physicians 2
  • Over 37 million AI Symptom Assessments completed
  • 83% of Ada’s top suggestions match a physician’s final diagnosis 3
  • Analysis of 26,000 assessments by Stanford University and Sutter Health found that Ada's advice safety matches human triage nurses 4
  • HIPAA compliant & operating under FDA enforcement discretion in the U.S

  1. BMJ Open (2020). How accurate are digital symptom assessment apps for suggesting conditions and urgency advice? Accessed on April 28, 2025. https://bmjopen.bmj.com/content/10/12/e040269.info

  2. Gilbert S, Mehl A, Baluch A, et al. (2020). How accurate are digital symptom assessment apps for suggesting conditions and urgency advice? BMJ Open, 10(12), e040269. Accessed on April 28, 2025. https://bmjopen.bmj.com/content/10/12/e040269

  3. Ada Health GmbH (2023). AI-based Symptom Assessment as the Digital Front Door to Care and to Enhanced Physician–Patient Interaction: Real-World Evidence from Portugal and the Netherlands [poster]. Accessed on April 28, 2025. https://figshare.com/articles/poster/AI-based_Symptom_Assessment_as_the_Digital_Front_Door_to_Care_and_to_Enhanced_Physician_Patient_Interaction_Real-World_Evidence_from_Portugal_and_the_Netherlands/22643311/

  4. Ceney A, Tolond S, Vijayakumar A, et al. (2021). Accuracy of online symptom checkers and digital triage tools: a systematic review. British Journal of General Practice, 71(707), e508–e518. Accessed on April 28, 2025. https://pubmed.ncbi.nlm.nih.gov/33170799/