Real-time glucose from FreeStyle Libre, Dexcom and Nightscout, with predictive low alerts, Apple Watch, Dynamic Island, family sharing and AI-powered insights, all in one app.
Sugar Sense app demo: live glucose with a predictive low alert
9:41
Time Sensitive
Glucose heading low
Now 95 ↘ may reach 55 mg/dL in ~15 min. Have fast-acting carbs ready.
now
Good morning
Alex 👏
🔥 6
Current Glucose
1120 mg/dL
Today
3 Hours •••
7:06 AM7:51 AM8:36 AM9:16 AM
📊Time in Range79% in range ↑6%
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
★ 5.0 on the App Store
Built by a T1D of 12+ years
3M+ readings delivered
Your data is never sold
Features Overview
Real-Time Glucose & Smart Alerts
Live readings from FreeStyle Libre, Dexcom and Nightscout, with high, low, rapid-change and predictive “heading-low” alerts you can tune to your own targets.
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
Let the people you trust follow your glucose and get the same low and high alerts you do, with an optional emergency call for urgent moments.
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
See your glucose live on the Lock Screen, Dynamic Island and Apple Watch, and connect the sources that power it all.
Works with Apple Health
or
Sign up with LibreLinkUp, Dexcom or Nightscout and start monitoring your glucose easily
Works with your CGM
Connect the account you already use. No extra hardware, no new sensor, set up in minutes.
Sugar Sense is an independent app and is not affiliated with Abbott or Dexcom.
Works on all your devices
iPhone, Apple Watch, Android and Wear OS, all kept in sync with the same real-time glucose.
iPhone
The full app: alerts, insights and Live Activity. Apple Watch
Glucose on your wrist and your watch face. Android
The same experience, built native for Android. Wear OS
Your number at a glance on Wear OS watches.
One app, control everything
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.
Real reviews from the App Store
M
Macy
App Store review, United States, Aug 2026
5.0
The only feedback I have is I wish I found it sooner. With Sugar Sense, I am able to see where my number is trending. The alerts when I am 90 or 80 saying I’ll be low in 20 minutes is a game changer. That has helped me stay in range more and helped me not correct too soon.
B
Brooklyn
App Store review, United Kingdom, Aug 2026
5.0
It has changed the way I manage my diabetes. I use a Dexcom ONE+ sensor and this app has given me the fast rise/fall and the urgent low soon alerts. This really helps me prevent hypos and act faster than I normally could. I don’t normally write reviews but this app is certainly worth downloading.
B
Budgie
App Store review, United Kingdom, Aug 2026
5.0
This app is absolutely fantastic, running like a dream, helping AI help me and my type 1 diabetes that I’ve struggled with control of for 45 years. Thank you so much.
K
Kitsune276
App Store review, Australia, Apr 2026
5.0
I can see my blood glucose readings on my watch and I can put a chart on my phone lock screen, meaning I can stay always up to date. In addition it will send and receive to Health, a feature I desperately wanted for the FreeStyle Libre.
G
Giorgi
App Store review, Georgia, Jun 2025
5.0
I am totally impressed how this app looks. Very clean user interface and impressive user experience, navigating the app is super easy and enjoyable.
Built by someone who lives this
Sugar Sense is built by Irakli, who has lived with type 1 diabetes for more than 12 years. Every alert, graph and screen exists because he needed it himself first.
Twelve years of type 1, every Libre generation, a Dexcom G7 in rotation, and one night that started an app: why Sugar…
Frequently Asked Questions
Sugar Sense works with FreeStyle Libre sensors through LibreLinkUp, with Dexcom sensors through Dexcom Share, and with self-hosted Nightscout sites. You simply connect your existing CGM account (or your Nightscout URL and a read-only token), with no extra hardware required.
Yes. If you run a self-hosted Nightscout site, Sugar Sense connects to it with your site URL and a read-only access token and shows your glucose on iPhone and Apple Watch with the same alerts and sharing as any other source. Our Nightscout setup and troubleshooting guide walks you through it step by step.
Yes. You can log readings from your blood glucose meter in seconds, or let the app read glucose you already save to Apple Health. You get the same graphs, statistics, logbook and reports; automatic alerts stay off, because they need a live CGM stream.
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. You can switch between mg/dL and mmol/L at any time in Settings, and every surface follows: graphs, alerts, statistics, the watch, widgets and reports.
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.
Yes. Enable the free Sugar Sense skill for Amazon Alexa, link your Sugar Sense account, and say “Alexa, ask Sugar Sense what’s my glucose” on any Echo to hear your latest reading, its trend and how fresh it is. On Echo Show devices the answer also appears on screen with a 3-hour graph. For a shorter phrase, create an Alexa Routine: your own trigger phrase (like “what’s my sugar”) plus a Customized action with the text “ask sugar sense what’s my glucose”.
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, Dexcom and Nightscout troubleshooting guides walk you through the most common fixes step by step.
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