Not feeling well?
Open K and type in what’s bothering you or your children (ages 3+). K asks smart questions that account for your age, gender, and medical history as it investigates your health.
Meet K, your free 24/7 health resource
K asks simple, relevant questions to help you understand symptoms concerning you or your kids and gives you immediate answers you can trust.
Now offering on-demand pediatric care for ages 3+
Doctors available in: CA, CO, FL, GA, MN, MO, NC, NJ, NY, OH, PA, SD, TN, TX, VT
How it works
Get smarter answers
After a short text-based conversation, K will share how doctors have diagnosed and treated people with similar symptoms and backgrounds. Learn about other symptoms to watch for, medications you can take, typical recovery times, and more.
If K recommends it, you can instantly chat with a doctor with the click of a button.
K provides answers around…
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Abdominal pain
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Headaches
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Chest pain
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Cold and flu symptoms
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Nausea and vomiting
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Fatigue
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Back and neck pain
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Sexually transmitted infections
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Bladder infections
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Mental health conditions
Abdominal pain 
Headaches 
Chest pain 
Cold and flu symptoms 
Nausea and vomiting 
Fatigue 
Back and neck pain 
Sexually transmitted infections 
Bladder infections 
Mental health conditions and hundreds more adult and pediatric conditions
Why choose K?
#1
most downloaded medical app in the U.S.
4M
users
10,000+
5-star reviews in the app store
How much does the K Health symptom checker cost?
The K Health symptom checker is free in our app. If you need to see a doctor, it will cost $19 flat fee, or you can sign up for unlimited virtual care for $9/month.
How do I use K Health’s symptom checker?
It’s easy! The first step is to download the K Health app. Then, create a profile with your personal information, and click “Check Symptoms.” The app will ask a series of questions to determine what your symptoms mean. Then, you can text with a doctor to get prescription treatment if needed.
What’s the difference between a symptom checker and Googling your symptoms?
In short, a lot. K Health’s symptom checker is fueled by medical insights from real people like you, giving it the ability to provide personalized health information and diagnoses. Googling your symptoms is the opposite of personal: you can only receive generic health information, not personalized health answers.
What is the best symptom checker?
There are many different symptom checkers available online, but not that many are reliable. At K Health, we provide users with an AI-fueled symptom checker that evaluates symptoms with 98%+ accuracy, based on medical insights from some of the biggest health systems in the world – Maccabi of Israel and Mayo Clinic of the United States.
No more waiting rooms
We’ve redesigned the visit and turned it into an ongoing conversation that feels like texting with a friend. You don’t need to schedule an appointment and pay a fee to get trusted answers about your health.
Personalized answers
Other symptom checkers rely on static rules or protocols to give you their best guess at a diagnosis. K was built by doctors and trained on millions of real medical records to give you more accurate results.
Your records are always private
Records of your symptoms and care stay on your phone. Plus, K Health complies with both HIPAA + GDPR, the world’s leading standards for information security and privacy. We use anonymized data to make the app smarter, but we will never share your personal health information.