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. Discuss with your healthcare professional how you should use the information displayed on the Dexcom ONE+ to help manage your diabetes.
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
Apple Watch:
• View your glucose information, trend graph, and alerts right from your wrist with the Dexcom ONE+ Apple Watch app. Watches require compatible smart device to use app.
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.
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Dexcom ONE+ FAQ
Is Dexcom ONE+ free?
Yes, Dexcom ONE+ is completely free and it doesn't have any in-app purchases or subscriptions.
Is Dexcom ONE+ legit?
⚠️ The Dexcom ONE+ app has poor ratings and negative feedback. Users seem unsatisfied with its performance or features.
Installation problematic, they had to send me 3 new devices as the previous ones were defective. Once installed the Bluetooth sync crashed numerous times, also Apple iOS updates for new version are irregular and often not reliable. Amazing this company is authorized to operate in the medical field (including tax payers’ money NHS reimbursement) as some people’s lives rely on these reading. Dangerous, avoid !
Corporate greed
The only possible reason to withhold essential features like critical alert is that they want more of our money on G7. It’s a simple software feature and there’s no reason they can’t turn it on for One+ with an hour of a dev’s time. They just don’t want to because they want us to upgrade and give them more money, and they’re willing to endanger us to do it. Shameful business practice.
Missing Insulin Options
I’ve just finished the last of my Dexcom One sensors (after 2 years of use) and have started with the Dexcom One +. The newer sensor, app and its functionality are a great improvement on the former. Thank you for your work so far.
However there is one glaring omission. The option to record Insulin dosages on gives you two choices, either “fast-acting “ or “long-acting”. Please include a third of “combo” so that users of insulin mixes such as Novomix and Humulin M3 are able to accurately record their insulin type and dosage.
Works well, but…
The app works well once the CGM has settled after the first 24 hours, but it would be really useful to be able to remove the erroneous readings you get during the first day, as these can really skew the overall average levels.
Not working
Stuck in a loop between a notice advising I need to update the app and the App Store that tells me I have the latest version. Libre was much better.
Broken by recent update
I used to love this app with it’s Apple Watch companion app and Home Screen widgets. Since the update at the start of October however, nothing has worked properly. My Watch app no longer fits properly on my Ultra screen forcing me to used the Digital Crown to scroll between viewing the current reading and the graph. The Watch also constantly fails to update with the latest readings and, after a few minutes, just shows “Check Dexcom mobile app”. My Watch complications are no longer available and the Home Screen widget now looks terrible.
Widget
I love the app. Having moved from Libre which had absolutely nothing, this is a breath of fresh air. Siri Shortcuts is a game changer within a HomePod filled home and Apple Watch support is brilliant. At first I had to tap the complication which displayed —- but with my new Watch Ultra I get the reading and arrow in the complication.
But, what have you done to my beautiful iOS 18 Home Screen with this latest update, the widget has turned in to a square with a thick white border??? Please fix this
Awful so far
Iv used this for 3 weeks now and iv rang dexcom 12 times now. Been sent numerous new sensors because of unexplained sensor failures and incorrect glucose readings. Now the app isnt letting me calibrate. I am having to test my blood sugars more than i was before.. not less. Very disappointing :( customer service are lovely though:, just a shame its so awful the equipment
Unreliable App
I am using this for the first time. I installed it correctly and was fine for the first day. Subsequently the app started losing signal with the sensor. The error message was for me to keep the phone within 6m of the sensor. I found this interesting because the phone was always on me. Otherwise the phone was on a table in front of me or in the same room as I was. This is a joke. If by the time I finish the second sensor and this error persists, it will mark the end of this device for me. I hope you will fix this as soon as possible.
Useful app but with limitations
The app runs well although it can lose connection to the sensor too easily even when the phone is in a pocket within 2 ft of the sensor.
The history note is useful but it would be better if there was an insulin option for a user mix e.g Novomix 30 which is 30% quick and 70% slow acting. At the moment there is only a short or long option
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