Questions, answered plainly.

Pulse is a privacy-first web app for your lab history. It imports lab-report PDFs, merges every result into one continuous line per biomarker, and adds what each number means, what could explain its direction, and what to ask your clinician.

Anyone sitting on years of lab PDFs spread across portals, especially people tracking a few markers over time who want to arrive at appointments prepared.

A modern browser on a desktop, tablet or phone. The layout switches from a sidebar on desktop to bottom navigation on small screens.

Pulse is free during the beta. Invites go out on a rolling basis.

Quest Diagnostics classic reports, MyQuest "Result Trends" exports, Kaiser MyChart (Epic) printouts, BioReference Laboratories reports, and Choose Health reports. More formats are on the roadmap.

Not yet. Pulse needs a PDF with selectable text. If a file is over the 10 MB limit, compress a copy in a way that keeps the text layer. Flattening it to images will make it unreadable.

They're kept. Results with no matching catalog entry appear under "Other" with category-level context and are listed in the Library's "From your reports" section.

No. Known renamings are folded into one series automatically, so a test reported under different names across eras and formats reads as one line.

The range printed on that report. Each reading keeps its own range. If a report's range is missing or unusable, Pulse falls back to its catalog and tells you.

Because the lab didn't measure one. Pulse never invents a number. Published calculators like FIB-4 are shown with their formula, cutoffs and source paper, and only when every input exists.

Each claim cites its source: Mayo Clinic, Cleveland Clinic, MedlinePlus/NIH, NIH ODS, AAFP, NIDDK, the National Kidney Foundation, AHA, ATA, AUA, ASH, CDC and Testing.com.

No. It's a personal organizer to help you prepare for a conversation with your clinician. It describes what a result is commonly associated with, and it never diagnoses, prescribes, or doses.

No. Reports are encrypted in your browser with AES-256-GCM before they're stored or synced. The key comes from your password and is never transmitted.

Because the server holds no key, nobody can recover your archive for you. Keep your password safe and download encrypted backups regularly.

An optional local helper that lets Claude or Codex answer questions such as "What was out of range in my last draw?" It runs on your Mac, decrypts in memory, can only change supplement runs and notes, and can be set to read-only.