WHERE HAS THIS BEEN ALL MY LIFE? This app, available for free (with bottom ads) on iOS and Google Play store and is an app designed to help people with food intolerances find foods without xyz or low in xyz. The categories are customizable and you can turn on/off intolerances at any time and the search parameters will adjust.
The app allows you to search for foods that contain the following: lactose, fructose, histamine, gluten, sorbitol, and salicyclic acid. There is a search function, you can look up foods by category, and even input your own custom foods or meals. This app is very exciting from a mast cell perspective as it can be difficult to find information on histamine levels in foods but can really be helpful for anyone with food allergies or intolerances or who are on specific diets.
Below are some screenshots of what the app looks like, and how it is laid out. I have not tested it for accessibility yet, but will update if I do. This post is not sponsored or affiliated in anyway, I was just thankful someone showed it to me!