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Smarter CGM Tracking for Everyone

Real-time glucose from FreeStyle Libre and Dexcom — with predictive low alerts, Apple Watch, Dynamic Island, family sharing and AI-powered insights, all in one app.

Download on the App Store
Sugar Sense glucose app on iPhone Sugar Sense glucose app on iPhone
You’re in range Great time in range today
Care Circle Your family gets the same low alerts
Log your day Meals, activity and more
Heading low? Get warned before you drop

Features Overview

  • Real-Time Glucose & Smart Alerts

    Real-Time Glucose & Smart Alerts

    Live readings from FreeStyle Libre and Dexcom, with high, low, rapid-change and predictive “heading-low” alerts you can tune to your own targets.

  • Always a Glance Away

    Always a Glance Away

    Your number and trend on the Lock Screen, Dynamic Island, Apple Watch and home-screen widgets — see it without ever opening the app.

  • Care Circle for Family

    Care Circle for Family

    Let the people you trust follow your glucose and get the same low and high alerts you do, with an optional emergency call for…

  • AI Insights & Statistics

    AI Insights & Statistics

    Time in Range and trends made clear, an AI food-photo carb estimate, and gentle, dose-free pattern insights to help you understand your day.

Smart Glucose Display & Integrations

A visual showcase of how Sugar Sense presents your glucose data using iPhone features — along with the supported device connections that power it all.

Connected to Apple Health
or
Sign up with LibreLinkUp or Dexcom and start monitoring your glucose easily
Sugar Sense glucose display on iPhone Sugar Sense glucose display on iPhone

One app, control everything

Sugar Sense app in use
  • Parents and caregivers can follow a loved one’s glucose in real time through Care Circle, sharing the same low and high alerts — with an optional emergency call so no urgent moment is missed.
    01.
  • Stay in full control of your own data: customise every alert and threshold, log meals and activity, and see your trends, Time in Range and patterns together in one place.
    02.
  • Give the people who support you a clear, real-time picture of glucose trends and time in range, so conversations are based on data, not guesswork.
    03.

What our happy users say

  • Megan R.

    Megan R.

    Parent of a 6-year-old with Type 1

    5.0

    Nights used to terrify me. Now my husband and I both get the heading-low alert through Care Circle, so whoever hears it first checks on our daughter. I finally sleep a little.

  • Marcus T.

    Marcus T.

    Living with Type 1 for 22 years

    4.9

    After two decades, the heading-low alert is the thing I trust most. It nudges me before I drop, and a glance at my watch or Lock Screen tells me everything without unlocking my phone.

  • Daniel K.

    Daniel K.

    Recently diagnosed with Type 2

    4.9

    Setup took minutes and linked to my Libre with no fuss. As someone newly diagnosed, the trend arrows and Time in Range finally made my numbers make sense, and seeing the pattern day to day keeps me motivated.

  • Sofia A.

    Sofia A.

    Marathon runner living with diabetes

    4.8

    On long runs I just glance at my wrist and the trend arrow tells me where I’m heading. Snapping a photo of a trailside snack for a quick carb estimate genuinely helps when I’m moving and can’t stop to think.

  • James P.

    James P.

    Husband of a partner with Type 1

    5.0

    Since joining her Care Circle, I see my wife’s glucose right on my phone and get the same low alerts she does. The heading-low warning means I can check in before she even feels it. Huge peace of mind.

  • Margaret H.

    Margaret H.

    Retiree, age 68

    4.9

    The numbers are big and easy to read, even without my glasses. A quick glance at my watch tells me where I stand, and my daughter sees them too. It keeps us connected without fuss.

From the blog

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Frequently Asked Questions

Sugar Sense works with FreeStyle Libre sensors through LibreLinkUp and with Dexcom sensors through Dexcom Share. You simply connect your existing CGM account — no extra hardware is required.

Yes. Live glucose, graphs, statistics, your logbook, Apple Health and every core alert — including the predictive “heading-low” alert and fully custom thresholds — are free. A premium subscription adds the AI features (food-photo carb estimate and AI insights), Apple Watch, Live Activity / Dynamic Island and emergency calling.

Yes. Alongside standard high and low alerts, Sugar Sense includes a predictive “heading-low” alert that warns you when your glucose is trending toward a low, so you can act early. Every alert is customisable.

Yes. With Care Circle, the people you choose can follow your readings in real time and receive the same low and high alerts you do — with an optional emergency call — so you are never managing things alone.

Yes. Sugar Sense shows your glucose and trend on the Apple Watch (with complications), in a Live Activity and the Dynamic Island, and in home-screen widgets, so your number is always a glance away.

Your data is handled under the GDPR and is never sold. Glucose and health data are used only to power the features and sharing you turn on. See our Privacy Policy for the full details, including the sub-processors we use.

No. Sugar Sense is a companion app that displays data from your CGM. It is not a medical device and should not be used to make treatment decisions. Always follow your CGM and your healthcare provider’s guidance.

“No Data” usually means readings have not synced from your CGM account yet. Our FreeStyle Libre and Dexcom troubleshooting guides walk you through the most common fixes step by step.