The allergy scanner app that makes your allergens light up on the label.
Point your camera at the ingredient list. The words you avoid light up on the package, with the exact word that matched: “whey (milk)”, “tahini (sesame)”. Labels are read on your phone, and photos are not uploaded.
Live, on the package
No shutter and no upload. Point at the ingredient list and matches are highlighted as you move. Photo mode reads a photo you take or pick, the same way.
See exactly what matched
“Contains”, “May contain” (from “may contain”, “traces” and “made in a facility” lines), or “None of your triggers found in what we read — always check the package.” LabelLight never gives an all-clear. If part of a label can’t be read, it says so and asks you to rescan.
Barcode lookup, with a label fallback
A barcode is looked up in Open Food Facts, an open food database. Only the barcode number is sent. If the product isn’t there, one tap switches to reading the label.
US 9, EU 14 and Japan’s 8
Allergen lists from the US FALCPA and FASTER Act, EU Regulation 1169/2011 Annex II and Japan’s Food Labeling Standards (特定原材料), with ingredient synonyms in seven languages. Wheat and gluten are separate.
Everyone you shop for (Pro)
Up to 6 people, each with their own triggers, checked in one scan. Intolerance packs (low-FODMAP ingredients, lactose, seed oils, sugar alcohols), custom words, an unlimited Checked list with recipe-change re-checks, and a PDF for school or a sitter.
$4.99/month, or $29.99/year with a 1-week free trial that is billed automatically when it ends (the app reminds you 2 days before, if you allow notifications). Or $59.99 once for Lifetime. Subscriptions auto-renew through Apple; manage or cancel in your Apple Account settings. Scanning stays unlimited without Pro.
LabelLight reads labels to help you spot ingredients. It can miss things: text can be unreadable, recipes change, and database entries can be wrong or out of date. Always read the package and follow your doctor’s advice. Not a medical device.
Where the allergen lists come from
United States, 9 major food allergens: Food Allergen Labeling and Consumer Protection Act of 2004 (FALCPA), as amended by the FASTER Act of 2021 (which added sesame). Tree nuts follow the FDA’s guidance Edition 5 (January 2025), which no longer lists coconut as a tree nut, so LabelLight does not flag coconut as a tree nut. If you react to coconut, add it as a custom word (Pro).
European Union, 14 allergens: Regulation (EU) No 1169/2011 on the provision of food information to consumers, Annex II.
Japan, 8 mandatory items (特定原材料): Food Labeling Standards (食品表示基準), Consumer Affairs Agency: shrimp, crab, walnut, wheat, buckwheat, egg, milk and peanut.
Intolerance packs flag ingredients by name. They are not medical thresholds; FODMAP flags mark ingredients commonly listed as high-FODMAP, without serving sizes.
Support
- It missed an ingredient, or flagged the wrong word.
- Tap “Report a wrong match” on the result. It opens an email to us with the words it read, so we can fix the word list. Nothing is sent unless you send the email.
- Does it work without a connection?
- Reading labels does. Barcode lookups need a connection; products you’ve looked up before are kept on your device.
- How do I cancel, or restore a purchase?
- Cancel in your Apple Account settings (Settings → your name → Subscriptions), at least 24 hours before the period or trial ends. To restore Pro on a new device, open Settings in LabelLight and tap Restore Purchases.
- Anything else?
- Email overlapmarr@gmail.com.