
SugarSentry
Your CGM data, at a glance
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Free
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About
Note: SugarSentry is for information only. It is not a medical device and must not be used to make medical decisions. Keep the alarms on your pump and sensor switched on, confirm readings on your pump, sensor or a blood glucose meter, and check with your doctor before changing anything about your treatment.
SugarSentry shows glucose data from your own account with a compatible CGM provider, without changing any setting in that account or in the provider's apps. You need an existing care-partner account with a compatible CGM provider to use it.
SugarSentry only reads your data. It cannot connect to your pump or sensor, and it cannot change your therapy.
WHAT YOU SEE
- Current glucose, trend, and how long ago the reading arrived
- Active insulin, time in range, and a history chart with meal, insulin and calibration markers
- Reservoir, pump battery, sensor battery and phone battery in one place
- Direction at a glance: red for trending low, orange for high
EVERY SURFACE
- Lock Screen and Dynamic Island, updated as new readings arrive
- Apple Watch app and complication
- CarPlay Dashboard for while you drive
- Siri: "what's my glucose?"
YOUR PUMP'S ALERTS, PASSED ON
SugarSentry passes on the alerts your pump reports to your CGM provider, such as low, high, sensor and reservoir alerts, and warns you when new readings stop arriving. Your pump's own settings decide which alerts exist. You choose the alert sound, snooze an alert, or silence one person's alerts when you can't respond. Test Alarm in Settings rings the full alarm screen on demand, so you can check how it sounds before you need it.
A WEB LINK YOU SHARE YOURSELF
Each person can have a randomly generated web link that cannot be guessed. SugarSentry never sends it anywhere: you copy it and send it yourself, to whoever you choose - a grandparent, a school nurse, a doctor. They see a read-only live view in any browser, with no app and no login. Create a new link and the old one stops working at once.
MORE THAN ONE PERSON
Follow more than one account from the same app, each with its own name, colour and alert settings.
HONEST ABOUT GAPS
When readings stop arriving, SugarSentry shows "--" rather than a number that might be mistaken for a current reading.
PRIVACY
No advertising, no analytics, no tracking. Your CGM provider sign-in is encrypted, and your readings are deleted from our server when you log out. We never sell or share your data.
SugarSentry is an independent app and is not affiliated with, endorsed by, or sponsored by any CGM, insulin pump or sensor manufacturer.
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What's New in SugarSentry
1.0
October 7, 2026









