People with diabetes who use a popular app to check their blood sugar have lost their normal method after an update led it to stop working on some Apple devices.

Users wear a tiny sensor that is implanted in their body and provides data to an app.

According to Abbott, the FreeStyle Libre gadget is the most widely used sensor-based glucose monitoring system in the world.

However, its app has stopped operating on some Apple devices and has been removed from the App Store.

According to the NHS, 200,000 people in the UK use these types of sensors.

According to Abbott, the issue is solely affecting clients in the United Kingdom, and the app will be available again soon.

However, there has been an online pushback from people who rely on technology for their well-being.

David Burchell, who has type 1 diabetes, described it as “very scary” to the BBC.

“This equipment is supposed to save your life,” he explained. “I woke up yesterday morning and went to check my sensor thing… and it basically broke, just showing a white screen, and I panicked.”

“I’ve spoken to [Abbott] several times because this has happened before.” They advised me to erase the program, restart the phone, and reinstall… But when I tried to redownload it, they’d removed it from the App Store, so I couldn’t.

“Aside from the fingerprint testing, I was left without an active test.” Pricking your finger 100 times a week is a nightmare, thus the app and sensor are extremely beneficial.”

Sonja Sleator of Belfast expressed anxiety that she would be unable to use the app because it was “so important” to her.

“Knowing I don’t have that constant check, it feels like going back to when I was first diagnosed and having to finger prick a few times a day,” she explained.