Dexcom ONE+

3.0
1.25k 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.
Updated on
9 Mar 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

3.0
1.24k reviews
Aardvark Maximus
21 May 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.
23 people found this review helpful
Did you find this helpful?
Dexcom
21 May 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/
Francis T
26 May 2026
The app works well, but one issue I have is not being able to use customised sound files for alarms, the alarm files supplied are too short in duration to wake me. Even having a setting for repeating the sound for a time period would be better than how it is now. In the Libre app you can use customised files, I made two files which last for 30 seconds, one for highs and one for lows. I wish I could use these in the Dexcom app.
2 people found this review helpful
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Dexcom
26 May 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/
John Yau
18 April 2026
I have just started using Dexcon one plus, so I don't have much experience to give comments, and I have not done enough comparisons between this apparatus and a blood glucose meter to have a say of its accuracy. BUT at the very least , please show the numbers on the verticle axis in the graph . there is no numbers between the high and low range limits. Extremely frustrating.
5 people found this review helpful
Did you find this helpful?
Dexcom
20 April 2026
Oh no! 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. 💚

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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