Dexcom ONE+

Dexcom ONE+

Continuous Glucose Monitoring

152 ratings
116 reviews

Details

  • Released
  • Updated

Features

Dexcom ONE+ screenshot #1 for iPhone
Dexcom ONE+ screenshot #2 for iPhone
Dexcom ONE+ screenshot #3 for iPhone
Dexcom ONE+ screenshot #4 for iPhone
Dexcom ONE+ screenshot #5 for iPhone
Dexcom ONE+ screenshot #6 for iPhone
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About

Monitor your glucose levels in real-time with this continuous glucose monitoring system app. Receive customizable alerts for highs and lows without finger pricks or scanning. Track key diabetes metrics and log events like meals and exercise to understand your patterns.

Real-time glucose readings
Customizable high/low alerts
No finger pricks or scanning required
Event logging (meals, exercise, insulin)
Share data with up to 10 followers
Apple Watch app integration
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What's New in Dexcom ONE+

1.9.0

July 30, 2026

Performance enhancement and bug fixes For technical assistance please contact technical support at dexcom.com or contact your local Dexcom representative.

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User reviews

latest update is bad

I like this app a lot overall but the latest update (Aug 26) has made it much worse. It’s stopped my glucose reading from showing on my lock screen, which was so handy when it worked. It’s also removed the ability to correct any mistakes made when logging which type of insulin you’ve taken - now you have to erase the whole entry rather than just amend the insulin types. Please put it back the way it was, there’s enough work to do in managing diabetes without this usually useful and well-designed app becoming less user friendly.
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Generally good

Good app overall, though I seem to occasionally stop getting notifications for highs and have to restart the app.

There’s one minor thing I’d really like to see fixed - when you are putting on a new sensor, and you’re getting the pop up saying ‘replace sensor’, if you put the sensor on and then go in the app, there’s a delay before the ‘replace sensor’ pop up displays. The problem is that the replace sensor pop up cancels anything you were doing on the app. So what happens is, I open the app to start the new sensor, I click ‘start new sensor’ and begin the process, then a few seconds in to that process the ‘replace sensor’ pop up appears, cancels whatever I was doing, and I have to start again. Really there needs to be some logic in place that means if I’m in the app, and have already pressed ‘start new sensor’, then that pop up doesn’t appear.
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Meal, insulin, activities on one history chart will be very useful

It helps to plan ahead how much time in advance to inject insulin and how much time you’ll get hypothermia after exercises. One chart with all data please see.

Have to refresh

A few months since I switched to iPhone pro max 17 and ultra watch 3, the watch and widget on iPhone lock screen is unreliable you have to tap to open app or complication otherwise it doesn’t show the right number so you can’t trust it which makes it effectively useless

Works fairly well

Having used the Dexcom One+ for only a few days, it’s an improvement over another CGM I’ve been using for years.

My only gripe is that BT range is significantly smaller than with my old CGM on this iPhone 17 Pro.

It would be useful to see meals marked on graphs and to have a night mode for after sunset settings.
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Developer apps

FAQ

What is Dexcom ONE+?

Dexcom ONE+ is a mobile app designed to work with the Dexcom ONE+ Continuous Glucose Monitoring (CGM) system. It allows users to view real-time glucose readings, receive alerts for highs and lows, and track diabetes-related events.

Does Dexcom ONE+ require finger pricks or scanning?

No, the Dexcom ONE+ app provides glucose readings and alerts without the need for finger pricks or scanning. However, if your readings do not match your symptoms, you should use a blood glucose meter for treatment decisions.

Can I share my glucose data with others using Dexcom ONE+?

Yes, you can share your glucose data with up to 10 followers who can monitor your glucose data and trends on their compatible smart device using the Dexcom Follow app. This feature requires an internet connection.

What devices are compatible with Dexcom ONE+?

The Dexcom ONE+ app is designed for use with compatible smart devices. You can find a list of compatible devices on the Dexcom website at www.dexcom.com/compatibility. The smart device is sold separately.

How often is Dexcom ONE+ updated?

The latest version of Dexcom ONE+ is 1.7.0, last updated on April 2, 2026. While this indicates a recent update, specific update frequency is not detailed, but the release date suggests ongoing development.

What is the age rating for Dexcom ONE+?

Dexcom ONE+ has an age rating of 4+. This indicates it is suitable for children and adults alike, designed for broad accessibility within the diabetes management community.

What are the key diabetes metrics shown in Dexcom ONE+?

The app displays key diabetes metrics in the Clarity Card section, providing users with both real-time and retrospective glucose data. This helps users gain a better understanding of their glucose patterns over time.

Does Dexcom ONE+ have ads?

The provided data does not specify whether Dexcom ONE+ contains advertisements. Therefore, it is not possible to confirm the presence or absence of ads.