The CGM app for FreeStyle Libre, Dexcom and Nightscout: real-time glucose, predictive low alerts, family sharing and AI insights on iPhone, Apple Watch, Android and Wear OS.
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
★ 4.8 on the App Store
Built by a T1D of 12+ years
3M+ readings delivered
Your data is never sold
See Sugar Sense in Action
Your glucose on your phone, your watch, your computer and Alexa, a heads-up before you go low, and your family in the loop. All in under a minute.
Real-Time Glucose & Smart Alerts
Live blood sugar 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, Wear OS 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, Apple Watch and Wear OS, 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 continuous glucose monitoring (CGM) account you already use. No extra hardware, no new sensor, set up in minutes.
Parents and caregivers can follow a loved one's blood glucose levels in real time through Care Circle, sharing the same low and high alerts, with an optional emergency call so no urgent moment is missed; for some families, this sharing is also a fun way to stay engaged, especially when younger users like seeing their support circle respond quickly to alerts.
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 your healthcare team and 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.
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.
J
John M.
Google Play review, Sep 2026
5.0
Being blind I have been looking for something very reliable and easy to use to hear my blood glucose levels. I linked my CGM and completed the step by step setup, even set up to use with Alexa. I love that every time my CGM updates I hear the update automatically without having to open my phone and navigate the screen readers. Life simplified. I am using it on my Android phone. The only thing I would like is to have options of voices that can be used.
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.
R
Richard H.
Google Play review, Aug 2026
5.0
Life-changing! I have Sugar Sense on my phone, laptop and now on my smart watch. My CGM reading is only a glance away from wherever I look. Knowing your blood glucose throughout the day and night is the best way to fight this disease. I highly recommend Sugar Sense for all your devices.
I
ItsSeni
App Store review, United States, Aug 2026
5.0
Sugar Sense makes glucose monitoring feel much easier with real-time readings, customizable alerts and a clean interface. I especially like the predictive low alerts and Care Circle, which make it reassuring to stay on top of trends and keep family informed. The free core features offer a lot of value.
K
Kazakage
App Store review, United States, Aug 2026
5.0
An amazing app for managing diabetes. It makes tracking glucose levels, insulin, meals and daily routines so much easier and more organized. It gives me more confidence and control every day. I highly recommend Sugar Sense to anyone looking for a reliable and convenient diabetes management app.
A
Abionaroyal
App Store review, United Kingdom, Aug 2026
5.0
Such an incredible app to track health, especially sugar levels. You can create your own logbook, connect directly to Apple Health and set up reminders. Haven’t heard or seen any tracking app as credible as this.
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.
Live glucose, every alert and family following are free forever. Premium adds intelligence and comfort on top.
Free forever
The safety net
$0forever
Everything on this list, for everyone, always.
Real-time glucose, graphs and trends
Statistics, Time in Range and your logbook, with logging via test strips or manual blood sugar entries even without a sensor
Every alert, including the predictive heading-low warning
Care Circle: family can follow you and get your alerts
Apple Health and Health Connect sync, CSV export
Web dashboard and browser extension
Alexa, Mac menu bar and Windows: glucose on every screen
Premium
Intelligence and comfort
$39.99per year
or $9.99 a month. Start with a free trial.
AI food scanner: photo to carb estimate
AI insights into your patterns, designed to support day-to-day diabetes management
Apple Watch and Wear OS apps with complications
Live Activity and Dynamic Island
Emergency phone call for urgent lows
PDF report export (AGP-style) for appointments
Family plan: up to 6 people for $59.99 a year
Prices in USD. Your exact price may vary based on your App Store or Google Play region and is always shown before you subscribe.
Get Sugar Sense on your phone
Start free, no card required. Upgrade whenever you want, or never.
Your health data belongs to you
Glucose and health data are used only to power the features and sharing you turn on. This app is not a medical device and does not replace professional medical advice. We never sell your data, full stop.
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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. Sugar Sense is on Google Play for Android phones, with the same real-time monitoring, alerts and Care Circle sharing as the iPhone app, plus home-screen widgets, a live status-bar glucose notification, Health Connect support and a Wear OS watch app.
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, Apple Watch, Android and Wear OS 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 or Health Connect. 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, Health Connect 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), the Apple Watch and Wear OS apps, 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. On Android, the same glance comes from home-screen widgets, a live status-bar notification and the Wear OS app.
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.
A CGM app is a smartphone app that works with a continuous glucose monitor to display, analyse and share your glucose readings. Sugar Sense is a CGM app for FreeStyle Libre, Dexcom and Nightscout: on top of the sensor readings it adds predictive low alerts, Care Circle family sharing, Time in Range statistics and glanceable widgets on iPhone, Apple Watch, Android and Wear OS, working alongside the official sensor app rather than replacing it.
No. A phone cannot measure blood sugar on its own, and no app can read glucose through the skin or with the camera. Continuous glucose monitoring needs a small wearable sensor, such as FreeStyle Libre or Dexcom, which measures glucose in the fluid just under your skin (interstitial fluid) and sends it to your phone. Sugar Sense is the companion app on top of that sensor: it shows the readings in real time, alerts you and your family, and turns the data into statistics you can act on. No sensor yet? You can still log readings from your blood glucose meter in seconds.
Yes. Three Connect IQ apps put your live glucose on Garmin: the Sugar Sense Watch Face keeps your reading, trend arrow and a trend graph on the main screen next to the time, the Sugar Sense widget shows your current reading, trend arrow and a 3-hour graph at a glance, and the activity data field adds your glucose to any activity screen while you run, ride or walk. Pair once with a short code and the watch refreshes itself about every 5 minutes with the same readings as the phone app, whether you use FreeStyle Libre, Dexcom or Nightscout. They work on 140+ Garmin models, including Forerunner, Fenix, Venu, Instinct and Edge (the watch face on about 115 watches); the Garmin display is part of Sugar Sense Premium, and alerts stay on your phone. Our Garmin watch setup guide walks you through it step by step.
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