The food intolerance (FIT) app stores information on your mobile device so that it can analyse your intolerances and provide recommendations.
The information captured by the FIT app stays on your device unless you choose to share it with the Apple Health app or export the data.
If you have more than one Apple device associated with your Apple account your data will be automatically shared between your devices. This is done for convenience to ensure that you don't have to enter it multiple times.
Your data is never shared with Today's New Idea.