Dexcom G6

Dexcom G6

Continuous Glucose Monitoring

9K ratings
280 reviews
Free

Details

  • Released
  • Updated

Features

Dexcom G6 screenshot #1 for iPhone
Dexcom G6 screenshot #2 for iPhone
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Dexcom G6 screenshot #9 for iPhone
Dexcom G6 screenshot #10 for iPhone
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About

Monitor your glucose levels in real-time with continuous glucose monitoring. Receive personalized alerts for high or low glucose, and share your data with loved ones. This app is designed for individuals managing diabetes with compatible CGM systems.

Real-time glucose readings
Personalized trend alerts
Customizable alert schedules
Share glucose data with followers
Health app integration
Apple Watch app support
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What users say

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What's New in Dexcom G6

1.16.0

July 16, 2026

Performance enhancements and bug fixes

User reviews

R.I.P G6

Dexcom canceled G6 if you have some still you can use it or you switch to G7. R.I.P G6

Years-long bugs and unreliable alerts

I’m wearing my last G6 sensor before I switch to the G7, but figured now is as good of a time as any to leave a disappointed review of the app.
On the positive side, I am grateful that this technology exists, and that when the sensors fail (as they do about once a month on average), the company is usually accommodating with free replacements. Dexcom Clarity is also a highly useful element of this product, but this review pertains only to this app.
Unfortunately, the alerts, which are the most crucial features of the app, are somehow both unhelpful and startling at the same time. I wish there were a way for me to acknowledge high or low alert early if I know I’m going to get one in a few minutes anyway. There’s really nothing like knowing my blood sugar might go out of range and wanting to silence that notification early, but having countless interviews, classes, etc., interrupted by a noise that disrupts everyone around me in a 50 foot radius. Not to mention how, although I have rise and fall rate alerts turned on, they only notify me after my blood sugar is out of range when the rise or fall rate was already significant almost an hour before the app made me aware of it.
The integration with iOS is also disappointing, because Siri has extreme limits on what information she can share with me, and the widgets rarely have real time data. The warm-up time being two hours long is extremely inconvenient for people who rely on this technology so much. My sensor will end at 110, but the next one will begin at 254 as much as I try to prevent it.
It’s also concerning that when there may be an issue with the sensor, the app is extremely generous on guessing the glucose values, often insisting that my blood sugar is up to 200 or 300 points above or below my actual glucose reading.
Lastly, my app has had a bug for about five years now, that no iOS, app version, or iPhone model upgrade has been able to resolve. When launching the app, the orientation of the graph sometimes flickers from horizontal to vertical back-and-forth several times, and usually lands in an orientation that glitches so badly that most of the indicators and buttons are invisible. This happened about once every day or so for the last five years, and requires me to quit and reopen the app in hopes that the glitch resolves. Nobody on tech support knew how to resolve it.
The graphics used to illustrate the sensor in the app are poor and could have easily been improved by a few hours redrawing them in a vector program.
Even the features like “add event” are not intuitive, and I didn’t feel inclined to use them at all in the last 10 years.
When looking at the color scheme, feature placements, fonts, and symbols, this app has never looked better than something a design intern could have whipped up in Figma with one day of training. It’s truly abysmal for a company that is so uniquely positioned in the market, is trusted for critical medical information by so many people, and charges hundreds or thousands of dollars for their products every month. I look forward to switching to the G7 soon, but I am desperate for a completely different experience than what I had with the G6.
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Unreliable

Unfortunately after 3 years of use this has been more of a challenge then a help with managing my blood glucose.

After calibration it will have its periods of inaccurate readings and many sensor failures.

When it works it works but be aware that the sensor might randomly fail .

Transmitter and sensors are horrible!!

Y’all need to fix this immediately asap! Now I already used up all my sensors and I have none left!!

Apps issue

Apps not allowing to create account after entering all data

Developer apps

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User experience

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Reported Bugs

3 issues

App unable to reconnect after signal loss

Bug

Calibration issues and errors

Bug

Notifications not working as expected

Bug

Requested Features

4 requests

Add notes for carbs and exercise

Feature

Customizable alert settings

Feature

Improved Apple Watch integration

Feature

Dark mode option

Feature

FAQ

What is the Dexcom G6 app used for?

The Dexcom G6 app is used in conjunction with the Dexcom G6 and G6 Pro Continuous Glucose Monitoring (CGM) Systems. It allows users to view their real-time glucose numbers and trends, receive personalized alerts for high or low glucose levels, and share their data with up to ten followers.

Who is the Dexcom G6 app intended for?

This app is intended for individuals with type 1 or type 2 diabetes, aged 2 years and older, who are using the Dexcom G6 or G6 Pro CGM Systems. It is indicated for use in making diabetes treatment decisions.

Does the Dexcom G6 app require fingersticks?

The Dexcom G6 and G6 Pro CGM Systems are indicated for diabetes treatment decisions with zero fingersticks and no calibration. However, fingersticks may still be required for diabetes management decisions if symptoms do not match the readings provided by the system.

Can I share my glucose data with others?

Yes, you can share your glucose data with up to ten followers in real time using the Dexcom Follow app. Followers can monitor your glucose data and trends on their compatible smart devices. This sharing feature requires an internet connection.

Is the Dexcom G6 app compatible with smartwatches?

Yes, the Dexcom G6 app is compatible with Apple Watch, allowing you to view your glucose information, trend graph, and alerts directly from your wrist. Compatible smart devices are required to use the app on a watch.