This app is intended for use by people who has one (or more) of the more common food allergies: wheat/gluten allergy, soy allergy, shellfish allergy, fish allergy, tree nuts allergy, peanuts allergy, egg allergy or milk allergy.
With this app you can scan the food products in your local grocery store and it will quickly tell you if a given given appears to be safe or not for you (if it knows the product). The products database is crowdsourced, meaning that it is mainly filled by people who use the app and submit new products when you scan a product that is not recognized.