Aurum

A little clarity, between blood tests.

Your blood tests, read back to you.

Every insight shows its work.

Download for macOSRead the example

Planned free · no account · data stays on your Mac
Product preview. macOS installer coming later.

A little more of the picture.

The story between your blood tests.

Lab PDFs pile up. The story between them gets lost. Aurum connects your past tests into one letter: what changed, what stayed steady, and what to bring to your doctor.

Each test is a photograph.
Your history is the album.

See how the letter knows
Your test · 9 Sep 2026Compared with 6 May

Since May, your numbers have a story to tell.

Your PTH is high while Vitamin D sits at its lower limit.A pair worth a conversation
PTH 128.0 pg/mL · Vitamin D 20 ng/mL
Same draw · 9 Sep 2026
Read them together with calcium
Ferritin — your iron reserve — dropped almost half since May. Still above range, but closer to it.Show the work
6 May: 737.2 → 9 Sep: 380.1 ng/mL
(380.1 − 737.2) ÷ 737.2 × 100 = −48.4%
126 days · lab range 22–322
Your blood sugar is back inside its range.Show the work
6 May: 101 → 9 Sep: 85 mg/dL
Lab range: 70–99 · 70 ≤ 85 ≤ 99
A numerical change. It does not establish why.

A little more of the picture.

Interactive preview · real readings from the bundled example data

You've had this data for years. Nobody read it to you.

An attachment from May. A printout from September. The one person with every result across every year is you. And you got a PDF.

What the lab sends

Laboratory · Biochemistry
Collection 09/09/2026
TestResultReferenceFlag
Ferritin380.122–322 ng/mLH
Vitamin D2020–60 ng/mL
Vitamin B-12559223–672 pg/mL
Folic Acid13.6> 5.38 ng/mL
PTH128.018.5–88.0 pg/mLH
Glucose8570–99 mg/dL
Cholesterol175< 190 mg/dL
HDL39> 40 mg/dLL
Creatinine1.180.70–1.30 mg/dL

Example report excerpt

What the lab sends. A wall of numbers, no context.

What Aurum says

Ferritin — your iron reserve — dropped almost half since May.

737.2 → 380.1 ng/mL · −48.4%

  • Your HDL — the protective cholesterol — slipped below range.
  • PTH is high while Vitamin D sits at its lower limit. These two work together.
  • Lipid profile improved in 3 of 4 markers.

17 in range5 attention1 improving

What Aurum says. The same numbers, with their history.

Drag to see the same result differently.← Aurum sentence · Lab report →

The result didn't change.
What you can see in it did.

Aurum reads your numbers.

Every sentence has a receipt.

“Almost half” is a sentence you can check. Open an insight and see the rule, the readings, the arithmetic, and where the explanation stops.

You don't have to take
the sentence on trust.

Ferritin dropped almost half.
Here is what “almost” means.

One marker. Two dates. Arithmetic you can check.

Rule Inspector trend.delta ≥ 25%

What it checks

A change of at least 25% within 365 days.

|Δ| ≥ 25% AND days_between ≤ 365

What it read

6 May 2026737.2 ng/mL
9 Sep 2026380.1 ng/mL

How it calculated

(380.1 − 737.2) ÷ 737.2 × 100= −48.4%

When it applies

Two comparable readings, 126 days apart. Same units; reported range 22–322 ng/mL. Still above range, closer to its upper limit.

What it can't tell you

Why ferritin changed, or what happens next. A numerical change does not establish its cause.

knowledge/rules/trend.yaml · v0.3
Rule preview · rules are files you can read.

The evidence stays with the sentence. Open it whenever you need it.

Scattered moments.
A thread you can follow.

Ferritin · ng/mL
18 Apr 2024 — 9 Sep 2026

Ferritin, connected across time245.7 ng/mL on 18 April 2024, 737.2 on 6 May 2026, and 380.1 on 9 September 2026. The shaded reference band is 22 to 322 ng/mL. Horizontal spacing represents elapsed time. Connecting segments do not estimate unmeasured values. Your lab's range · 22–322 245.7737.2380.118 Apr 20246 May 20269 Sep 2026
18 Apr 2024245.7 ng/mL6 May 2026737.2 ng/mL9 Sep 2026380.1 ng/mL

The green band is your lab's range. The gold line is your history.
Still above range in September, even after the drop.

Actual time between tests. The line connects readings;
it does not estimate values between them.

Time tells one part of the story.
Some results need each other.

Aurum connects your numbers.

Some things only show up when two markers are read together.

Your lab flags each number on its own. A pair gives you a different question to ask.

Three results from the same blood draw · 9 September 2026.
Each stem has its own scale. Dashed lines mark its lab range.

Your PTH is high while your Vitamin D sits at its lower limit.

These two work together to manage calcium. Here, one is high, one is at its floor, and calcium is within range — for now. That is a pattern to discuss, not an explanation of what caused it.

Calcium wasn't flagged.
It still belongs in the story.

Why these results were read together

What it read · same collection · 9 Sep 2026

PTH

128.0 pg/mL
Lab 18.5–88

✓ 128.0 > 88Above range · used

Vitamin D

20 ng/mL
Lab 20–60

✓ 20 < 30At lower limit · used

Ionized calcium

1.27 mmol/L
Lab 1.16–1.32

✓ 1.16 ≤ 1.27 ≤ 1.32Within range · used, not flagged

All three conditions, joined by AND.
All readings present, in matching units, from the same draw.

✓ ✓ ✓ → fires

The rule's threshold is not the lab's range.

The supplied rule preview uses Vitamin D <30 ng/mL. The lab reports 20–60. A value of 20 is at the lower limit, never below range. The 30 threshold is an example rule setting; its clinical source was not supplied.

What it can't tell you

It sees one blood draw. It does not know how long this has been the case, what caused it, or whether it is settling. Aurum reports the numbers and leaves the name to your doctor.

Rule preview · pth_vitd · calcium's within-range condition is explicit.

Nothing moved is also news.

When nothing changed, Aurum says so — and stops talking.

No streaks. No scores. No red badge to clear. Your history will still be here when you have another result to add.

A different, illustrative test
11 Dec 2026 · compared with September

Nothing moved.

All 23 example markers remain within their reported ranges, close to last time. No new change or pair meets the rules.

An illustrative quiet state, separate from the September data.

Now imagine your whole history here.

Three ways to read
the same blood.

A letter when you need the essentials. A history when you want to look closer. Pairs you might never have thought to look for.

AurumAn interactive glimpse of your history
Your test · 9 Sep 2026compared with 12 May · 120 days

Since May, seven things changed. One of them matters most.

Most of your results are where they should be. Below is what moved, starting with the one that matters most.

Your PTH and Vitamin D belong in the same conversation. They work together to manage calcium — this pattern deserves attention.

PTH 128.0 pg/mL · lab ≤ 88 · Vitamin D 20 ng/mL · lab 20–60 · same draw

Ferritin — your iron reserve — dropped almost half since May. Still above range, but heading the right way.

737.2 → 380.1 ng/mL · lab 22–322 · ↓48%

Your HDL, the protective cholesterol, slipped just below its range.

44 → 39 mg/dL · lab > 40 · ↓11%

Your blood sugar is back inside its range. In May it was just over the line.

101 → 85 mg/dL · lab 70–99

Everything else held.

HbA1cHemoglobinPlateletsTSHB12+11 more
17 in range5 attention1 improvingRead the full letter
Browse / Vitamins & minerals3 readings · 2024 – 2026

Ferritin — your iron reserve

Above rangeImproving

Still above your lab's range, but the last four months undid most of the spring rise.

380.1ng/mLlab 22 – 322 · May 737.2 · ↓48%
32222your lab's typical range8004000245.7737.2380.1apr 2024may 2026sep 2026↓48%
2026-09-09Above, improvingrange 22–322380.1
2026-05-12Well aboverange 22–322 · ↑200%737.2
2024-04-18In rangerange 22–322 · first245.7
Open the full timeline
Pairs · same draw9 Sep 2026 · Deserves attention

Your PTH and Vitamin D belong in the same conversation.

PTHVitamin DCalcium128.0 · above20 · at limit1.27 · in range

Vitamin D helps absorb calcium. When there isn't enough, your body raises PTH to compensate. Here you can see it: one high, one at its floor, calcium holding in the middle.

A result inside its range can still matter to the question.

Show the work
Preview · example dataA personal record. Yours to keep.

A place to return to.
Without starting over.

Start with what you have.

Drop your lab PDF.
Read what changed.

Start with the reports you already have. Your lab's values, dates, units, and reference ranges stay attached to the story.

  1. Import your report.

    Drop the PDF. Aurum extracts its readings. Review them against the report; enter a result manually when it can't be read.

  2. Aurum compares.

    Each marker with its own past, and with the markers it works alongside. Every observation keeps its evidence.

  3. Read what changed.

    A letter, with the most important observations first. Open a sentence whenever you want to look closer.

Your results, their history, and the connections Aurum finds stay on your Mac. No cloud. No account.

~/aurum/results.yamlOpen it in any text editor. It continues to be yours.

From a number to a better question.

Consultations start from data, not memory.

You don't have to remember which number was high, or find the right attachment. Bring the three results, their ranges, and the question they raised.

Aurum writes the question.
Your doctor gives the answer.

A one-page example you can print or save as PDF.

AurumClinician brief · example
Collection: 9 Sep 2026

Three results.
One question to bring.

MarkerResultLab rangeStatus
PTH128.0pg/mL18.5–88Above
Vitamin D25-OH20ng/mL20–60At limit
Ionized calcium1.27mmol/L1.16–1.32Within

Good question for your doctor

“My PTH is above range while Vitamin D sits at 20. My calcium is within range. Is that pattern worth investigating?”

Example check: PTH >88 AND Vitamin D <30
AND calcium 1.16–1.32 · all from the same draw.
Calcium: used, not flagged.

The 30 ng/mL threshold belongs to the example rule,
not the lab's range. Clinical source not supplied.

One draw cannot establish cause, duration, or diagnosis. Aurum reports the numbers and leaves the name to your doctor.

What Aurum
is not.

Not a medical device.
Not a diagnosis.
Not a cloud.
Not a black box.

Aurum reports what moved and shows how it knows. What it means is a conversation between you and your doctor — now a better one.

Can it diagnose?

No. It describes changes and shows which results its rules read together. Even when two markers point the same way, your doctor determines what that means.

Is this AI?

Aurum uses multiple methods to generate insights. Every one shows its work: what it checked, what it read, how it reached the observation, and what it can't tell you.

Where do the ranges come from?

From your lab report. A rule may use a separate threshold; its receipt makes the distinction visible. Vitamin D at 20 is at this lab's lower limit, even though the example rule checks for a value below 30.

What platforms and price?

The first download shown here is for macOS, planned to be free with no account. Supported operating-system versions and release details will be published with the installer.

Can I download it today?

This is a product preview. You can explore the letter, open the receipts, browse the example, and print its brief. A macOS installer is not available from this page yet.

Aurum

Understand what changed.
See what connects.
Bring better questions.

Download for macOSRead the example

Planned free · local · open rules

Product preview · macOS installer coming later.

Aurum

A little more time.
Then a little more clarity.

Aurum is in development. The macOS installer isn't available from this preview yet.

For now, the letter, the receipts, and the printable example are yours to explore.