Privacy Policy

Medically Reviewed by Dr. Jitendra Rajbhar | Last Updated:

Last updated: August 2026

This single policy covers both the medcalc.io website and the MedCalc Pro app — one entity, one policy, rather than separate documents for each surface.Contents

  1. Who we are
  2. Scope
  3. What stays on your device
  4. Calculator inputs & results
  5. AI Note (optional)
  6. Device limit
  7. Push notifications
  8. Advertising
  9. Subscriptions & purchases
  10. The website specifically
  11. Third-party providers
  12. Data retention
  13. Your rights & requests
  14. International transfers
  15. Children’s privacy
  16. Data security
  17. Regulatory status
  18. Changes
  19. Contact

Who we are

VitaliSyn Group (“we”, “us”, “our”) operates both medcalc.io and the MedCalc Pro app (together, the “Service”) as a single business. Registered address: Ghazipur, UP (India).

Scope of this policy

This policy covers everything under the MedCalc name — the website you’re reading this on and the app, together. Sections below are organized by feature; some apply to the app specifically, some to the website specifically, most are self-explanatory from their heading.

What stays on your device (App)

MedCalc has no account or login system. Your favorites, calculation history, theme preferences, and profile (name, specialty, institution, if you set one) are stored locally on your device only, using standard local app storage. We do not operate a server that receives or stores this information, and none of it is tied to your identity in any system we control.

Calculator inputs and results (App)

The values you enter into a calculator (age, labs, vitals, and similar) are processed entirely on your device to compute the result. They are not transmitted anywhere or logged by us, with one exception: the optional AI Note feature, described below.

AI Note (App, optional, Premium feature)

If you use the AI Note feature, the calculator name, the computed result, and the values you entered for that calculation are sent to our note-generation backend, which forwards a structured version of that request to Anthropic (the maker of Claude, the AI model used) solely to generate the note text. This request is not linked to your name or any account, since none exists — it is associated only with a random, on-device identifier used for rate-limiting. We do not retain the content of these requests beyond what is operationally necessary to return the generated note and enforce rate limits. Please don’t enter patient names or other directly identifying information into calculator fields — they are designed for clinical values, not free-text identifiers, and this is the one feature where data leaves your device.

Device limit (App, Premium feature, if enabled)

To limit how many devices can use a single Premium subscription at once, the App may send a randomly generated device identifier and a subscription identifier (not your payment details) to a device-verification backend when confirming Premium status. This identifier cannot be used to determine your name, location, or any other personal information, and exists solely to enforce the device limit described in the subscription terms.

Push notifications (App, optional)

If you enable “New calculators” or “Evidence updates” notifications in Settings, the App subscribes your device to the corresponding notification topic via Firebase Cloud Messaging (a Google service). This uses a device-level messaging token managed by Google; we do not maintain our own database of devices or link the token to any personal information. Turning a topic off unsubscribes that device. All other notifications in the App are generated locally on your device.

Advertising (App)

Free-tier use is supported by Google AdMob. AdMob may collect device and advertising identifiers, approximate location, and usage data to show and measure ads. This collection is governed by Google’s own privacy policy and ad settings, not by us directly — you can review and control this through your device’s ad settings at any time. Premium removes ads entirely.

Subscriptions & purchases (App)

Premium purchases are handled entirely by your platform’s app store — Google Play Billing on Android, or Apple’s App Store where an iOS version is offered. We do not see, receive, or store your payment card details; those are handled by the platform under its own terms. We use Qonversion, a subscription-verification service, to confirm a purchase is genuine; Qonversion receives purchase confirmation data from the platform on our behalf, not your payment details.

The website specifically

medcalc.io itself has no accounts, no login, and no forms that store your data with us. We do not use analytics tools or advertising trackers on this website, and we do not set cookies for tracking purposes.

Server logs

Like virtually every website, the server or hosting provider that serves these pages may automatically record standard technical logs — IP address, browser type, pages requested, and timestamps — for security, abuse prevention, and operational purposes. These logs are handled by our hosting provider under its own retention practices and are not used by us to identify or profile visitors.

Email contact

If you email us, we receive your email address and whatever you choose to include. We use it only to respond to you, and retain the correspondence as long as reasonably needed for that purpose and any follow-up.

Third-party service providers

The Service relies on the following third parties, each acting under their own privacy policy for the data they process on our behalf: your platform’s billing system (Google Play; Apple where applicable), Qonversion (subscription verification), Google AdMob (advertising, free tier only), Google Firebase (backend hosting for the AI Note feature, push notification delivery, and app-integrity verification), and Anthropic (AI Note generation, only when you use that specific feature). The website itself currently has no active third-party integrations beyond standard hosting infrastructure.

Data retention

Since the App has no accounts, most App data (favorites, history, profile) persists only on your device until you delete the app or clear its data — we have no ability to access or delete it remotely, because we never receive it. AI Note requests and device-limit check-ins are retained by their respective backends only as long as operationally needed for rate-limiting and device-count enforcement, and are not kept as a permanent record of what any specific device has calculated. Website email correspondence is retained as described above.

Your rights & requests

Because nearly all App data lives on your device under your control, you can access, export (via the PDF/share features), or delete it at any time by using the App’s own features or by uninstalling the App. For the limited data described above that does leave your device — AI Note requests, device-limit check-ins, or website email correspondence — you may contact us using the details below to ask what, if anything, is retained; depending on your jurisdiction (including under India’s Digital Personal Data Protection Act, the EU/UK GDPR, or similar laws where they apply to you), you may have additional rights to access, correct, or request deletion of such data, which we will honor to the extent technically feasible given that most of these records aren’t linked to an identifiable person in the first place.

International data transfers

Where data does leave your device (AI Note requests, device-limit check-ins, push notification delivery), it may be processed on servers located outside India, including in the United States, by the third parties listed above. By using these optional features, you consent to this transfer.

Children’s privacy

MedCalc is intended for healthcare professionals and students, and neither the website nor the app is directed at children. We do not knowingly collect information from children. If you believe a child has provided information through the Service, contact us using the details below.

Data security

We use reasonable technical and organizational measures to protect the limited data the Service’s optional features transmit, including secret-based authentication, app-integrity verification, and rate limiting on our backend services. No method of transmission or storage is completely secure, and we cannot guarantee absolute security.

Regulatory status — stated plainly

MedCalc is an educational reference tool for healthcare professionals. It is not a medical device, has not been cleared or approved by the FDA, CE, or any comparable regulatory body, and must not be used as one. We are not a HIPAA covered entity or business associate: the Service does not create, receive, maintain, or transmit protected health information on behalf of covered entities — calculator data stays on your device, and the optional AI Note feature is designed for clinical values, not patient identifiers. Professionals remain responsible for their own regulatory and institutional compliance when using any output of the Service. Any statement elsewhere — on the website, in marketing material, or otherwise — that conflicts with this section is superseded by this section.

Changes to this policy

We may update this policy as the Service evolves. Material changes will be reflected in the “Last updated” date above, and continued use of the website or App after a change constitutes acceptance of the updated policy. This policy is available in-app at any time from Settings, and at this page.

Contact

Questions about this policy, or requests regarding your data: contact@medcalc.io.