Rawnaq
At-home iron check

Your color, read carefully.

Rawnaq reads the color of your lower eyelid and nails to flag possible low iron — and tells you, gently, when it's time for a blood test.


This is a screening aid, not a diagnosis. It cannot measure your blood or replace a lab test. It can only suggest whether a blood test is worth taking.

How it works

Color is a real signal — within limits.

When iron and hemoglobin drop, the tissues that are normally rich pink — the inside of your lower eyelid and your nail beds — turn paler. Researchers have shown a smartphone photo of these areas can flag likely anemia surprisingly well.

What Rawnaq actually does

It takes your photo next to a printed color card, corrects the lighting and white balance against that card, measures the redness of the tissue in a controlled way, and places you in one of three bands.

What it honestly cannot do

It does not give a hemoglobin number, and it is not perfect — like every non-invasive method, it can miss cases. Skin tone, lighting, and camera differences all affect it. That is exactly why every result ends in "confirm with a blood test," never "you're fine."

Accuracy, stated plainly

Published photo-based methods reach roughly 90% sensitivity as a screen — good at catching cases, but with false alarms and some misses. Rawnaq is tuned to catch rather than reassure. Treat a "Get tested" result as important and a "Looks healthy" result as not a guarantee.

Before we start

A few honest ground rules.

If you feel unwell, don't wait for this.
Severe tiredness, breathlessness, chest pounding, dizziness, or craving ice/dirt — see a doctor now, whatever this app says.

Are you pregnant?

Anemia in pregnancy is common and serious. If yes, Rawnaq will always recommend a blood test regardless of the result.

Choose a site

Which area will you photograph?

The nail bed is easiest and works best across skin tones. The inner lower eyelid carries a stronger signal but is harder to capture.


Rawnaq color card

Print at 100% scale. Keep it flat and unbent.

white · gray · dark · red · pink — used to correct lighting

No printer? Open this page on another phone and hold that screen inside the gold frame during capture.

Capture

Frame your nail and the card

Starting camera…
color card
nail
Lighting Card visible In focus

Reading your color…

Correcting lighting against the card

Site read
Capture quality
Redness index

Rawnaq is a wellness screening aid and is not a medical device. It does not diagnose, treat, or prevent any condition. Always confirm with a qualified clinician and a laboratory blood test.

Your trend

Past checks

Stored only on this device. A trend matters more than any single reading — watch the direction over weeks.