Dexcom ONE

1.4
1.21K reviews
50K+
Downloads
Content rating
PEGI 3
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About this app

Monitoring your glucose level has never been simpler with the Dexcom ONE Continuous Glucose Monitoring System and mobile app.

Dexcom ONE Continuous Glucose Monitoring System provides the user the ability to:
- Know their glucose level with just a glance at a compatible smartphone†
- Set optional and customizable high and low alerts
- Use a discreet, simple and convenient device
- Access glucose summary reports
- Plus, zero fingersticks* or calibrations
Plus, Health app access so you can share retrospective glucose data with third party apps.

Before you start making treatment decisions with Dexcom ONE, work with your healthcare provider to learn how.

Learn more at dexcom.com
This app is for use with the Dexcom ONE Continuous Glucose Monitoring System

*If your glucose alerts and readings from the Dexcom ONE do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions
†For a list of compatible devices, visit www.dexcom.com/compatibility
Updated on
Feb 14, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Health and fitness and 3 others
Data is encrypted in transit
You can request that data be deleted
Committed to follow the Play Families Policy

Ratings and reviews

1.4
1.2K reviews
Craig Johnston
November 22, 2024
Using the app on a Samsung A55. App isn't usable at all. Finally able to set it up and input sensor and transmitter information but whenever the app is opened it instantly closes stating it isn't available on this phone even though in the provided link it is recently listed as support getting a parting glance at my bm isn't good enough or helpful
7 people found this review helpful
Did you find this helpful?
Dexcom
November 22, 2024
We're sorry to hear that, thanks for letting us know about this issue. Please call us on 0800 031 5763 (UK) or 1800 827 603 (ROI) and we’ll be able to help you out 💚 Alternatively you can fill a Product Support request and we will get back to you https://dexcom-intl.custhelp.com/app/support_request/
Graham Style
January 24, 2025
Starting to get more and more issues with the app and notifications. Lose signal/connection at least once a day now. It is infuriating the number of notifications when the sensor has expired and when you are out of range. Actually to distracting to deal with but goes mad when you turn off notifications. I know it's expired and high from the first notification. The app is inconsistent in it's notifications as well, sometimes I have extreme highs and have no notification at all on the way up.
5 people found this review helpful
Did you find this helpful?
Dexcom
January 28, 2025
We're sorry to hear that, thanks for letting us know about this issue. Please call us on 0800 031 5763 (UK) or 1800 827 603 (ROI) and we’ll be able to help you out 💚 Alternatively you can fill a Product Support request and we will get back to you https://dexcom-intl.custhelp.com/app/support_request/
Jennifer Lawson
October 10, 2023
The option to set alerts to reoccur is useful. The sound that plays is loud, though sometimes a little too loud in comparison to other apps, especially through headphones. It also turns off sound for other apps which isn't ideal. We need a better history record. We also need an alarm that plays constantly, rather than once every 5 minutes. This isn't enough to wake people up, especially when low. We should have the option to set multiple alarms, more than just one high and one low alarm.
8 people found this review helpful
Did you find this helpful?
Dexcom
October 10, 2023
Hi there, thanks for getting in touch. Our team of experts are best placed to answer this for you. Please give us a call on 0800 031 5761

What’s new

Performance enhancement and bug fixes


For technical assistance please contact technical support at dexcom.com or contact your local Dexcom representative.

E-mail address: appsupport@dexcom.com
Website: www.dexcom.com