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.
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.
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.
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."
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.
Anemia in pregnancy is common and serious. If yes, Rawnaq will always recommend a blood test regardless of the result.
The nail bed is easiest and works best across skin tones. The inner lower eyelid carries a stronger signal but is harder to capture.
Print at 100% scale. Keep it flat and unbent.
No printer? Open this page on another phone and hold that screen inside the gold frame during capture.
Correcting lighting against the card
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.
Stored only on this device. A trend matters more than any single reading — watch the direction over weeks.