How to Share FreeStyle Libre Readings With Family

To share FreeStyle Libre readings with family, you use the free LibreLinkUp app. The person wearing the sensor scans or streams with the LibreLink app, invites followers by email from inside that app, and each family member installs LibreLinkUp and accepts the invitation. Once connected, approved followers can see current glucose, trend arrows and recent history on their own phones, usually within a few minutes of each reading.

The short version: The Libre wearer sends invites from the LibreLink app, and family members accept them in LibreLinkUp to become followers. After that, your readings appear on their phones automatically, and companion viewer apps can pull the same data into one shared family view.

What you need before you start

Sharing Libre data works when a few pieces are in place. Gather these first so setup goes smoothly:

• An active FreeStyle Libre sensor (Libre 2 or Libre 3, depending on your country).
• The LibreLink app installed and set up on the wearer’s phone, with a LibreView account.
• The LibreLinkUp app installed on each family member’s phone (iPhone or Android).
• A working email address for every follower you want to invite.
• An internet connection on both phones. Sharing sends data through the cloud, not directly between devices.

One important note: the wearer must use the LibreLink phone app, not only the separate reader device. The reader alone cannot send data to followers.

How to share Libre readings with family, step by step

On the wearer’s phone (LibreLink)

1. Open the LibreLink app and sign in.
2. Open the main menu and select Connected Apps.
3. Find LibreLinkUp and choose Manage.
4. Tap Add Connection and enter the family member’s name and email address.
5. Send the invitation. LibreLinkUp emails that person a link to accept.

On the family member’s phone (LibreLinkUp)

1. Install LibreLinkUp from the App Store or Google Play.
2. Create an account using the same email address the invitation was sent to.
3. Open the invitation and tap Accept.
4. The wearer’s glucose should now appear on the follower’s home screen.

You can invite more than one follower. Many families add a partner, a parent and an adult child so several people can keep an eye out. If someone stops needing access, the wearer can remove the connection from the same Manage screen.

What can family members actually see?

Once connected, followers see the information that helps them support you without overwhelming them. In LibreLinkUp that usually includes:

• Your current glucose value in mg/dL or mmol/L.
• A trend arrow showing whether you are steady, rising or falling. If you want a refresher on what each arrow means, see our guide to understanding glucose trend arrows.
• A short graph of recent readings so they can see the shape of the last few hours.
• High and low notifications when your glucose crosses the thresholds you set.

Followers cannot change your sensor, your settings or your treatment. They are viewers, which is exactly the point. Sharing is about awareness and support, not control.

How fast do shared readings update?

FreeStyle Libre 3 streams a new reading about every minute, while Libre 2 typically updates around every minute when the phone stays in range. Because shared data travels through Abbott’s cloud, followers usually see a value within a few minutes of the wearer’s phone receiving it. A short delay is normal.

If readings stop appearing, the cause is almost always a broken link in that chain: the wearer’s phone lost internet, the app closed in the background, or the sensor moved out of Bluetooth range. Our FreeStyle Libre troubleshooting guide walks through the most common fixes when sharing goes quiet.

LibreLinkUp limits families run into

LibreLinkUp is a solid built-in option, but families often want a bit more. Common frustrations include:

• Everyone can only follow one wearer per account in a simple view, which is awkward for households with two people using CGMs.
• Followers get Libre data only, so a family that also uses Dexcom or Nightscout needs separate apps.
• Alert customization and the on-screen display are limited compared with dedicated viewer apps.
• There is no easy Apple Watch complication that keeps your number on your wrist at a glance.

This is where a companion viewer app can help. Sugar Sense connects to Libre through LibreLinkUp, to Dexcom through Dexcom Share, and to self-hosted Nightscout, then shows all of it in one place with custom alerts, Time in Range statistics and a shared family view. It reads the same data you already share; it does not replace your sensor or its built-in alarms.

Tips for reliable family sharing

• Keep the wearer’s phone online. Sharing pauses whenever that phone loses internet. On trips, see our tips for managing glucose while traveling.
• Let the app run in the background. Force-closing LibreLink stops the flow of data to followers.
• Agree on when to text or call. Decide together which numbers or trends are worth a check-in so no one panics over a normal wobble.
• Set thresholds thoughtfully. Alerts that fire too often get ignored. Learn more about why timing matters in why real-time glucose alerts matter.
• Give followers context. A single high number after a meal is different from a steady climb. The trend arrow tells most of the story.

If you are the family member doing the watching, our caregiver’s guide to remote glucose monitoring covers how to be supportive without hovering.

Frequently asked questions

Can I share Libre readings without the internet?

No. Sharing sends data through the cloud, so both the wearer’s phone and the follower’s phone need an internet connection. The sensor still stores readings locally, but they will not reach family until the connection returns.

How many family members can follow one Libre sensor?

You can invite several followers from the LibreLink app. Each person needs their own LibreLinkUp account tied to the email address you used for the invitation. There is no strict limit for most households.

Do followers see alerts, or just numbers?

LibreLinkUp can send high and low notifications to followers in addition to showing the current value and trend. Keep in mind that follower alerts are a convenience feature and can be delayed; they are not a substitute for the alarms on the wearer’s own device.

Can I share Libre and Dexcom in the same app?

Not within LibreLinkUp, which is Libre only. A companion viewer app such as Sugar Sense can bring Libre, Dexcom and Nightscout data together so a family with mixed devices sees everyone in one shared view.

Bringing it together with Sugar Sense

Once your Libre data is flowing through LibreLinkUp, Sugar Sense can turn it into a calmer, clearer experience for the whole family: one screen for your glucose and trend, custom high and low alerts, a predictive heading-low warning, Time in Range at a glance, and Care Circle sharing so the right people are looped in. It works on iPhone and Apple Watch and is free for core monitoring, so your number can live quietly on your wrist and on your loved ones’ phones.

This article is educational and not medical advice. A companion app like Sugar Sense never replaces your CGM device or its built-in alarms, and it is not a medical device. Always confirm important readings and make treatment decisions with your healthcare provider. See our medical disclaimer for details.