Gluten Signal

Gluten Signal helps you check packaged food labels for declared gluten before you buy or eat, so you can make more informed choices at the store or in the kitchen.

Scan a product barcode or take a photo of an ingredients label, and Gluten Signal reads the listed ingredients and allergen statements to flag gluten-containing ingredients, "may contain" or cross-contact warnings, and gluten-free claims. Each result is shown as a clear status: gluten declared, cross-contact warning, gluten-free claim found, no gluten ingredient detected, or unable to confirm, along with a short explanation of what was found on the label.

Keep a searchable on-device history of everything you have scanned, so you can quickly look back at a product before repurchasing it or double-check a result later. Add your own notes to any scan for reminders about specific brands, restaurants, or recipes.

Every plan includes free barcode scans and photo label reads each month, with paid tiers available for households and individuals who scan more often and want a larger monthly allowance of photo label reads.

Gluten Signal is a label-reading aid, not a medical device or laboratory test. It cannot test food for gluten or contamination and cannot confirm whether a product is safe for a person with coeliac disease or a gluten intolerance. Manufacturing practices and recipes can change, so always check the current physical package and, when in doubt, contact the manufacturer or consult your doctor or dietitian.

Recent changes:
Initial public release of Gluten Signal. Scan a packaged-food barcode or photograph an ingredients label to check for declared gluten, cross-contact warnings, and gluten-free claims. Your scan history stays on your device.