Medical Fact Checker

Intermittent fasting lowers blood pressure.

An example claim, and what the app's report on it covers.

Type a health claim. Medical Fact Checker searches the medical literature, reads the studies and tells you what the evidence says, with citations you can check yourself.

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  • SearchedPubMed and Europe PMC, with queries built from the claim
  • Scoredevery study found, for how closely it addresses the claim
  • Quotedthe passages that support or contradict it, from the full text where it can be read
  • Checkedeach paper for retractions, funding and conflicts of interest
  • Verdicta written report weighing the evidence for and against

How a claim is checked

  1. Search. Your claim becomes literature searches in PubMed and Europe PMC.
  2. Score. An AI model rates each study for how directly it bears on your claim, so the weak matches drop out.
  3. Read. The app fetches the full text of the studies from open-access sources wherever it can, or reads a PDF you upload.
  4. Cite. It pulls out the exact passages that support or contradict the claim, each linked to its paper.
  5. Report. You get a verdict with the reasoning, the citations and the studies behind it, ready to export as a PDF.

Evidence you can look behind

Retracted papers flagged

Every study is checked against Crossref and the Retraction Watch database before it can count towards a verdict.

Funding and conflicts shown

Each paper gets a transparency rating from its funding, conflict-of-interest, data-availability and trial-registration statements.

Your choice of AI

Use your own key for Anthropic, OpenAI, DeepSeek, Groq or Mistral, or run models on your own computer with Ollama.

No account, no servers

Your claims and reports stay on your device. There is nothing to sign up for and nothing we collect.

Get Medical Fact Checker

For iPhone and iPad, Mac, and Android.

You will need an API key from one of the supported AI providers, or an Ollama server you run yourself. An optional free NCBI API key speeds up PubMed searches.

Medical Fact Checker is free software under the GNU Affero General Public License. The source code is on GitHub.

Your data stays with you

The app has no analytics, no trackers and no account. Searches go to the public research databases, and the articles' text goes to the AI provider you choose, under your own key. Everything else stays on your device unless you turn on sync.

Read the full privacy policy

Support

The app's built-in Help explains each setting and every part of a report.

To report a problem, ask a question or suggest a feature, open an issue on GitHub. Please include the app version (shown in Settings) and your device.