Dexcom ONE+

1.42K reviews
Content rating
PEGI 3
100K+
Downloads
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About this app

Diabetes goes where you go, now your glucose readings can too, with the Dexcom ONE+ Continuous Glucose Monitoring (CGM) system and mobile app†.
With the Dexcom ONE+ mobile app†, users can access their real-time glucose readings at a glance and set customisable alerts that can help warn of highs and lows, all with no finger pricks* or scanning.

The Dexcom ONE+ mobile app† has been designed with enhanced features to help in the management of diabetes:
• The app-led onboarding allows users get started in a few clicks only.
• Share your glucose data with up to 10 followers who can monitor your glucose data and trends on their compatible smart device with the Dexcom Follow app. Share and Follow functions require an internet connection.
• Key diabetes metrics displayed in the Clarity Card section of the mobile app, so that users can see both real-time and retrospective glucose data.**
• Event logging where users can track activities like meal intake, exercise sessions and insulin injections, helping them better understand their glucose patterns.1
• Alerts to notify users 12-hours before the end of a sensor session, so you can change your sensor when it’s convenient for you.1

Learn more at Dexcom.com.

This app is only 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
† Smart device sold separately. For a list of compatible devices, visit www.dexcom.com/compatibility.
**An internet connection is required for patients to send their glucose data to Dexcom Clarity via a compatible smart device: dexcom.com/compatibility.
1 Dexcom ONE+ User Guide, 2023.
Dexcom ONE+ Continuous Glucose Monitoring
Updated on
Jul 22, 2026

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

1.41K reviews
Aardvark Maximus
May 21, 2025
So much wrong with this app, not least the inability to view account information and I have no idea what it's doing or where any data is going because it won't let me log in anywhere. The fact you need a separate app to see the data online and supposedly export it is bizarre, not that it's logging any data. Poor implementation of what should be a decent app bit really isn't.
27 people found this review helpful
Did you find this helpful?
Dexcom
May 21, 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/
Kant
August 26, 2026
The app works fine but I've noticed that my phone restarts itself around every four hours which makes monitoring blood glucose at night really difficult as my phone will just restart and I'll have to get up, and go back on the app to make sure that everything is okay. My phone is compatible with the app but it's still not working.
3 people found this review helpful
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Dexcom
August 27, 2026
Oh no! We're sorry to hear that. Please contact our Technical Support Team who will be happy to help you resolve this issue 💚 https://dexcom-intl.custhelp.com/app/support_request/
Michael Adams
July 25, 2026
Never known an app to drain the battery so fast. The app does not work unless it has unrestricted access to drain the battery. Makes it unusable if you are unable to charge your phone daily. States that "Dexcom products work with any smartwatch that meets the minimum operating system (OS) requirements. " but then does not give any details for One+ compatibility. Does the "-" mean it is or is not compatible? There no support available to work out why I cannot get the info onto my smartwatch.
4 people found this review helpful
Did you find this helpful?
Dexcom
July 27, 2026
Oh no! We're sorry to hear that. Please contact our Technical Support Team who will be happy to help you resolve this issue 💚 https://dexcom-intl.custhelp.com/app/support_request/

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

App support

About the developer
DexCom, Inc.
appsupport@dexcom.com
6340 Sequence Dr San Diego, CA 92121 United States
+1 858-230-9058
EU medical device information
Dexcom ONE+ (SRN: US-MF-000010694)
Dexcom, Inc.
6340 Sequence Drive, San Diego, California, 92121, USA
UDI-DI: 038627D1+CGMKB

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