.Com TLD freestylecheck.com

freestylecheck.com

December 15, 2025

What is freestylecheck.com?

freestylecheck.com is an official site run by Abbott — the company behind the FreeStyle Libre glucose monitoring system. The site isn’t a product store or general info page. It’s a tool you use to check whether a specific FreeStyle Libre 3 or FreeStyle Libre 3 Plus sensor is affected by a quality issue that Abbott has publicly acknowledged. (FreeStyle Check)

This is a targeted medical device correction portal, not a diabetes advice forum or general Abbott product page. (FreeStyle Check)

Why is this website important right now?

Recently, Abbott identified a problem with a subset of FreeStyle Libre 3 and FreeStyle Libre 3 Plus sensors. These affected units may give incorrectly low glucose readings — which for people living with diabetes can lead to dangerous treatment decisions (like taking too many carbs or delaying insulin). (FreeStyle Check)

Public health notices from multiple sources are pointing back to that same domain. For example, city health advisories explicitly tell people to go to freestylecheck.com and enter their sensor serial number to see if their device is affected. (Helsingin kaupunki)

What the site actually lets you do

The key functionality is this:

  • You select your country/region.

  • You enter your sensor’s serial number into the check tool.

  • The system tells you whether your specific FreeStyle Libre 3 or Libre 3 Plus sensor is potentially affected by this issue. (FreeStyle Check)

If the sensor is affected, you’ll be prompted to provide contact info so Abbott can ship a replacement sensor at no cost. (FreeStyle Check)

The site also explains where to find the serial number — on the sensor carton, the applicator label, or inside the Libre reader/app. (FreeStyle Check)

What’s going on with the sensors themselves?

This isn’t just speculation — regulatory agencies and press outlets are reporting it:

  • Some FreeStyle Libre 3 / 3 Plus sensors have been found to report falsely low blood glucose values. (The Independent)

  • Abbott and the FDA have issued notifications telling users to check their serial numbers. (FreeStyle Check)

  • In jurisdictions like Finland and others, official warnings tell users to check the site and stop using affected sensors. (Helsingin kaupunki)

  • Thousands of devices are involved; global reports indicate millions may have been distributed, and hundreds of adverse events have been linked to the fault, including serious injuries and some deaths in rare cases. (The Independent)

Importantly, the problem appears sensor-specific. The Libre 3 reader hardware and mobile apps haven’t been affected. (Bronstein, Gewirtz & Grossman, LLC)

Is the site legitimate and safe?

Automated safety checks (like ScamAdviser) — while not definitive — show that the site itself isn’t flagged as a scam or dangerous. It uses valid encryption (SSL), and trust indicators are present. (ScamAdviser)

The domain was set up around early November 2025, which makes sense in the context of a recent urgent product notice. (ScamAdviser)

However, because the site is new, some external trust tools point out that you should always double-check you’re on the correct URL and not a fake look-alike site before entering personal or medical data. (ScamAdviser)

Key things to keep in mind

Here’s the practical core of how this works for users:

  • This site only checks specific FreeStyle Libre 3 and Libre 3 Plus sensors — other models like Libre 2 or older devices are not affected. (FreeStyle Check)

  • You need your exact serial number for the sensor to use the tool. (FreeStyle Check)

  • If your sensor is on the affected list, don’t use it — dispose of it and wait for the replacement. (FreeStyle Check)

  • If your readings don’t match how you feel but your SN isn’t flagged, use alternative glucose checks (fingerstick meter) and contact Abbott or your healthcare provider. (FreeStyle Check)

Key Takeaways

  • freestylecheck.com is an official Abbott sensor check site, created as part of a medical device correction initiative. (FreeStyle Check)

  • It exists because some FreeStyle Libre 3 and 3 Plus sensors are giving inaccurate low glucose readings. (FreeStyle Check)

  • The site allows you to confirm whether your sensor is affected by entering its serial number. (FreeStyle Check)

  • If affected, Abbott will supply a free replacement. (FreeStyle Check)

  • This is a safety issue with real health implications — multiple global health advisories and regulatory agencies reference the same portal. (Helsingin kaupunki)

  • The platform itself appears safe but verify URLs before you enter any data. (ScamAdviser)

FAQs

Is freestylecheck.com fake or a scam?
No. Trusted safety tools mark it as safe, and it’s linked to official manufacturer communications about a product correction. (ScamAdviser)

Do I need this site if I don’t use a FreeStyle Libre 3 or 3 Plus sensor?
No. This site’s only purpose right now is to check those specific sensor models. (FreeStyle Check)

Will it automatically replace my sensor?
Only if the tool confirms your sensor is part of the affected batch and you provide contact details. (FreeStyle Check)

What should I do if I think my sensor readings are wrong but it’s not on the affected list?
Use an alternative glucose meter or the reader’s built-in meter for treatment decisions, and contact healthcare support as needed. (FreeStyle Check)

Does this issue affect other Libre products or the mobile app?
No — current evidence indicates the issue is limited to certain FreeStyle Libre 3 and Libre 3 Plus sensors only. (Bronstein, Gewirtz & Grossman, LLC)