Give each child an allergy profile, then scan any barcode for a clear answer that's checked for them, with the exact ingredient flagged. The same profile becomes an emergency card, a translated travel card, and a printable passport for school and camp.
Your profiles stay on your device, no sign-up, no tracking.
We ran AllergyLens over 1,424 real supermarket products and checked every answer against what the label says. Here is how it did, including the part we would rather not print.
Set it up once per child. The same profile then works everywhere food is a question, not just at the shelf.
Scan a barcode for an instant verdict, checked against that child's allergies, traces settings, and diets.
A full-screen emergency card: their allergens, EpiPen status, contact, and anaphylaxis first-aid, working offline.
A translated allergy card to show restaurant or shop staff, in nine languages, so nothing is lost in translation.
Print the allergy passport, or save it as a PDF, to hand to a teacher, camp, babysitter, or doctor.
No lists to scroll, no cross-referencing E-numbers. Point, and read the verdict.
Scan a barcode, search by name, or photograph the ingredient list. The label is read on your phone, nothing is uploaded.
Every scan runs against each profile's allergies, traces settings, and diets, the whole family in one check.
Not safe, Caution, or Looks safe, with the exact ingredient that triggered it highlighted in the list.
The details that matter to people who read every label, not just a traffic light.
A profile per person; one scan is checked for everyone at once.
Shared-facility warnings default to unsafe, and you can relax them per allergen when your allergist agrees.
Flag products that conflict with vegan, vegetarian, halal, or kosher, using certification labels and ingredients.
Heads-ups for related allergens like lupin, and pollen-food oral allergy syndrome, the things generic scanners miss.
Follows the milk and egg ladders: softens a baked product to a caution when your allergist has cleared it.
Re-scan a product you've bought before and it flags when the ingredients have changed since last time.
A per-child anaphylaxis card, allergy cards in nine languages for eating out, and a printable passport for school and camp.
Installs to your home screen and keeps working in a shop basement with no signal. Recent products are cached.
Profiles, history, and label photos stay on your device. No account, no cloud, no tracking.
AllergyLens does the checking, but the small print still matters. 9 short guides, every claim linked to its source.
Raw apple itches, cooked is fine: that is pollen cross-reaction, not a nut-style allergy.
Sesame became the 9th US major allergen in 2023, but tahini and halva still hide it.
Get a signed emergency care plan, then ask whether the school stocks epinephrine.
Add a child, then scan. It's free, needs no account, and adds to your home screen on iPhone and Android.
Start scanningAllergyLens reads open food databases and your own label photos. It builds on the work of others, here's who.
Product names, ingredients, and allergen tags come from Open Food Facts, a free and open database built by volunteers worldwide, licensed under the Open Database License (ODbL).
openfoodfacts.orgFor some US products not yet in Open Food Facts, AllergyLens falls back to the U.S. Department of Agriculture's FoodData Central.
fdc.nal.usda.govIngredient labels are read on your own phone using Tesseract, an open-source text-recognition engine. Photos never leave the device.
tesseract.jsSet in Fredoka and Atkinson Hyperlegible, a legibility-first typeface designed by the Braille Institute of America, fitting for something whose whole job is reading small print.
Atkinson Hyperlegible