Last updated 08-10-2026
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HeyDoc
HeyDoc is a free medical assistant chatbot that answers health questions through messaging apps and webchat. You describe symptoms or concerns in plain language, and HeyDoc replies with a smart note that includes relevant medical information, suggested next steps, and follow-up questions. It runs on WhatsApp, Telegram, SMS, Facebook Messenger, Viber, Line, and a browser webchat.
Most symptom checkers return static articles. HeyDoc holds a back-and-forth conversation and tailors the final note to what you shared, including details about family members you describe. The service is completely free, which sets it apart from telehealth platforms that charge per visit. Response times run 2 to 4 minutes for the final note, reflecting high demand rather than a live doctor on call.
It suits people with awkward or minor health questions they would rather not bring to a clinic visit. Parents tracking changes in a child's health and caregivers looking after older relatives also get value from describing someone else's symptoms. HeyDoc is not a replacement for emergency care or in-person diagnosis.
Available on WhatsApp, Telegram, SMS, Messenger, Viber, Line, and webchat
100% free with no appointment booking or subscription required
Conversations average 5 to 10 minutes with a smart note delivered in 2 to 4 minutes
Handles sensitive health topics without judgment in a private chat format
Supports questions about your own health or symptoms you notice in loved ones
Completely free with no subscription or per-visit fee
Works across seven messaging platforms including WhatsApp and Telegram
Private chat format suits sensitive health questions
Can describe symptoms for family members, not just yourself
Final smart note can take 2 to 4 minutes during high demand periods
Not a substitute for emergency care or licensed medical diagnosis
No dedicated mobile app beyond messaging platform integrations
Is HeyDoc free to use?
Yes, HeyDoc is 100% free. Standard SMS or data rates from your carrier may apply when messaging through text-based channels.
Which platforms does HeyDoc work on?
HeyDoc works on webchat, WhatsApp, Telegram, SMS, Facebook Messenger, Viber, and Line. Pick any channel on the HeyDoc homepage to start a conversation.
How long does a HeyDoc conversation take?
HeyDoc conversations last as long as you need. Most users finish in 5 to 10 minutes, and the final smart note typically arrives within 2 to 4 minutes.
What does HeyDoc's smart note include?
HeyDoc's smart note summarizes relevant medical information based on your conversation, suggests next steps, and lists follow-up questions you may want to consider.
Can I ask HeyDoc about someone else's health?
Yes. HeyDoc lets you describe symptoms or health changes you notice in loved ones, including children and older family members, and tailors the note to that person.
Does HeyDoc replace a doctor visit?
No. HeyDoc provides informational guidance through chat but does not diagnose conditions or prescribe treatment. Seek in-person or emergency care for urgent medical issues.