The latest iOS update disabled Libre 3 app on my iPhone

The Libre 3 App developer may not have updated their app for compatibility with the iOS 18.2

When you read the write up by App developer on these app, none of these apps show compatibility with the iOS Health App.

FreeStyle Libre 3 – US on the App Store

FreeStyle Libre 2 - US on the App Store

FreeStyle LibreLink - US on the App Store

At the same time the Blood Glucose Section in the Health shows few Apps and Freestyle Libre is not one of them.

Probably you are using third-party apps and/or a third-party device.

If you are experiencing any difficulty with third-party apps or a specific website or a product then please contact the app developer or site publisher/host or the manufacturer directly. Here is how

• To contact an App developer --> How to contact an app developer - Apple Support
• To contact a web publisher —> Scroll Down to the bottom of the web page. You will find: Contact Us, Help Center, Support, Terms of use, etc.
• To contact the Manufacturer --> Please read the manual that may have come along with the product.

Libre has a terrible track record of compatibility when it comes to both iOS and Android OS updates. Most decent size pharmacy’s have the libre reader device available for purchase. You may want to pick one up even if you manage to get yours working again just as a backup.