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Lab report scanner app: photograph reports into a phone vault

Free printable blood pressure log (PDF)

A lab report scanner app is for the paper that never fits in a wallet: the printed blood test, the discharge note, the prescription you need again at the next visit. Blood Snap photographs that page into a phone vault under More Health → Documents. The scan becomes a PDF on the phone, with a name you choose, so you can open it without digging through a drawer.

This is separate from snapping a home monitor. A meter snap is for a blood pressure or glucose reading you confirm and log. A document scan is a copy of paper. Blood Snap does not read the lab result, grade it, or turn it into a diagnosis.

Photograph the report on the phone

Tap Scan. On iPhone the camera uses Apple VisionKit. On Android it uses Google ML Kit. Edge detection, cropping, and page order run on the device. There is no account step and no upload before the PDF is saved.

One scan can include up to 10 pages. Those pages are saved as one PDFin the app's private storage. A two-page chemistry panel and an eight-page discharge summary can each be their own document, as long as a single capture stays within ten pages.

  1. Open More Health → Documents.
  2. Tap Scan and fit the paper in the frame.
  3. Add further pages if the report continues, up to ten.
  4. Name the document and add tags you will actually search for.
  5. Save. The PDF stays on this phone.

A name you will recognize at the visit

The title is what free search looks at, along with tags. "Blood test March" is easier to find than "Scan 4". Tags such as lab, hba1c, or 2026 let you filter without opening every file. Folders can nest, so lab reports and prescriptions do not sit in one flat list. The folders and tags guide covers a simple filing habit.

Free search matches the name and tags. Blood Snap Pro also searches the text recognized inside the PDF, on the device. Typing a test name can surface the report even when the title does not contain that word.

The phone vault does not upload the scan

Scanned documents are not sent to Blood Snap, Firebase, or Groq. They are not part of cloud sync. Blood Snap also excludes them from Android Auto Backup and from iPhone and iPad device backups, so they are not copied into Google or iCloud device backup with the rest of the phone.

The trade-off is restore. If you uninstall the app or move to a new phone, scanned documents are not brought back automatically. Tap Share PDF when you want your own copy in Files or another place you control. That share is the only time a document leaves the app. How the shared file is named is covered in sharing a lab report PDF for a clinic visit. A longer privacy walk-through is keeping scanned medical documents on the device.

Free for five documents

  • Free: scan on the device, keep up to 5 documents at a time, search by name and tag, and share a PDF.
  • Pro: unlimited documents and on-device full-text search inside each PDF.

At the free limit the app asks you to delete one document before another scan is saved, and it offers Share PDF first so you can keep a copy before you remove it from the vault. For the full scan, folder, and search flow, see scan and save medical documents on your phone.

What this scanner is for

Use it to hold paper you already have. The laboratory, the hospital, and your clinician remain the source of the result. Blood Snap is a personal wellness diary. It is not a medical device, a laboratory, or a second opinion on the numbers printed on the page.


Photograph lab reports into an on-device vault. Scan up to 10 pages into one PDF, name it, and keep up to 5 documents free. Nothing is uploaded until you choose Share PDF. Not a medical device.

Educational information with public guideline citations. Not medical advice and not a diagnosis. Blood Snap is a personal wellness diary — not a medical device, blood pressure machine, glucometer, or CGM. Always follow your clinician's advice.

Questions about this guide

Yes. In Blood Snap, open More Health, then Documents, and tap Scan. Apple VisionKit on iPhone and Google ML Kit on Android detect the page on the device. Up to 10 pages in one scan become a single PDF stored on the phone.

Log the numbers you just read about.

Blood Snap is a free diary for blood pressure, blood sugar, and weight — not a diagnosis. Charts and PDF export included.