Updated October 2026 by Kamal Nasir
Food scanner apps work in two ways: some look a barcode up in a product database, and some read the printed ingredient list with the camera. This page compares four scanners with Litmus Label Reader, which does both and works offline. Each summary is drawn from the app's own App Store description.
Scans the barcodes of food and personal care products and gives each a rating with the analysis behind it, suggesting similar alternatives when a product rates poorly. Food is assessed on nutritional quality, additives and whether it is organic, and its description cites a database of about 4 million food and 2 million cosmetic products. App Store
Built around dietary restrictions and allergies: you choose your diets, such as low FODMAP, vegan or low histamine, from a long list and scan barcodes to see whether a product fits. It also lists suitable foods at grocery stores and restaurants, keeps a profile for each person you shop for, and makes shopping lists. App Store
Reads ingredient lists through the camera and highlights the words you have chosen to avoid as you point. It has more than 30 built-in categories, from common allergens to vegan, pregnancy and palm oil, lets you create your own, scans in many languages and works offline. App Store
Scans a food barcode and shows whether the product meets the ingredient standards of Bobby of FlavCity, with flagged ingredients highlighted in red and a tap to learn why. It flags over 100 ingredients, including food dyes, seed oils and preservatives, lets you browse by store, and suggests alternatives. App Store
Looks a barcode up in a bundled database of about 440,000 US products, or reads the printed ingredient list with the camera when a product is not there. It returns the label as printed with flagged words marked and sourced notes beneath, checks every scan against your allergen list, and works offline with no account. About it ยท App Store
A barcode scanner looks a product up in a database, so it depends on the product being listed. A label reader reads the printed ingredient list with the camera, so it works on any labelled package but needs the text to be legible. Litmus does both, and Soosee reads labels by camera.
No. An app can only read what is printed on the label, and a label cannot rule out cross contact. Check with the manufacturer, and with your clinician for a diagnosed allergy.
Our entry in this category: Litmus Label Reader.
Published by Kamal Nasir, the developer of the apps marked Ours. Apps change, so check each one's App Store page for its latest features.