App Store

Dexcom G7

Originator Dexcom
Primary Metric 8,137
Know your glucose number and where it’s heading with the Dexcom G7 Continuous Glucose Monitoring (CGM) System. Only use this app if you have the Dexcom G7 CGM System.* Before you start making treatment decisions with Dexcom G7, work with your healthcare professional to learn how. The Dexcom G7 Continuous Glucose Monitoring (CGM) System supports more empowered and integrated diabetes management. Its low-profile, wearable sensor provides real-time glucose data to a user’s compatible display device, no fingersticks required.† Dexcom G7 also offers customizable alerts that can help warn of high or low glucose levels, as well as remote monitoring and reporting options that help keep users connected to their loved ones and care teams anytime, anywhere. *To view a list of compatible devices, visit dexcom.com/compatibility. †If your glucose alerts and readings from Dexcom G7 do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions. In addition to the accurate performance provided by the Dexcom Sensor, you’ll receive other valuable features: • 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 • Clarity Clinic is now integrated into the G7 connections tab, making it easy to share data with your Clarity healthcare team • Now you can log your estimated fasting glucose in the Dexcom G7 app. Regularly tracking your fasting glucose allows you and your healthcare team to identify trends in your glucose levels • Connect G7 Sensor directly to your Apple Watch, giving you the freedom and convenience of real-time glucose readings on your wrist even when you’re not near your phone** • Digital Health app integrations allow you to share your glucose data with third-party health apps and lifestyle devices • Now you can see your health and activity data from connected apps and devices on your G7 trend graph • Add a shortcut so you can ask Siri to read your current glucose value, using a custom phrase • Dexcom Clarity summary insights are integrated into the G7 app, so that you can see both real-time and retrospective glucose insights from the same app Apple Watch: • View your glucose information, trend graph, and alerts right from your wrist with the Dexcom G7 Apple Watch app. Watches require compatible smart device to use app. G7 app features and partner integrations may differ by region. Refer to your user guide for more information. **Compatible smartphone is required to pair a new Dexcom G7 sensor with a compatible Apple Watch. Dexcom G7 users must continuously have their smartphone within 20 feet / 6 meters to utilize the Share/Follow features. Apple Watch is not capable of Share/Follow.
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Developer & User Discourse

Going back to Libre • Jun 28, 2026 ★ 1
Very poor graphics. Full of unnecessary alarms that you can’t disable.
RomanBuffalo • Jun 27, 2026 ★ 1
I'm traveling internationally and brought a Libre and Dexcom with me. Downloaded Libre app and used the sensor without issues. 2 weeks later, tried dexcom, but you can't use it unless you download it in the US! Now I'll be without CGM for the next few days because of this geofencing on the app. Bye bye Dexcom, I'm a Libre person from now on.
Ebeneezer Merryweather • Jun 27, 2026 ★ 1
This app makes me want to go back to finger pricks. It’s incredibly expensive. The app isn’t accurate for our son. We have to fingerpick just as much as we did before he was on Dexcom. The alerts cause our son to get scared, but you cannot turn them off. Even if they are active on the monitor app. Our next apt, we’re finding a new cgm.

Update: Dexcom reached out to me asking me to contact them, but the urls don’t work, and they make it more difficult to actually contact them then it is to finger prick. There should be an option of less than 0.
JRMATT5 • Jun 26, 2026 ★ 1
Horrible! The watch and phone app aren’t synced as advertised. The snooze function doesn’t work at all. I’d give them a lower rating, but the scale doesn’t go low enough. Their support promises call backs and never calls.
RT1DH • Jun 26, 2026 ★ 1
I hate this app. I get a notification about a low BG. I acknowledge the alert in the app. 10 seconds later I get the same alert and have to acknowledge again. Repeat ad nauseam. Get your $#!t together, Dexcom.
Ryan Kreinke • Jun 26, 2026 ★ 1
This app is plagued with simple things that completely ruin user experience. These include but are not limited to:

- When there is a server outage, a pop up prompt notification comes up telling you this. You can only click “OK” or “Retry” and this prompt reappears every time you switch tabs. What is the point of this?
- App straight up can not be used when phone is low on storage
- App caches data and doesn’t delete it until you delete the app
- Physically can not use app without critical alerts turned on
- When blood sugar is high, and you open the app, a prompt comes up that you have to acknowledge before you’re allowed to do anything else on the app.
- Sometimes when the above mentioned prompt comes up, it doesn’t come up right away, so it pulls you out of a different screen such as insulin where you may already have data typed in.
- if your device storage is low, you get sent a critical notification every five minutes that doesn’t go away by itself and is unsilencable…
Ezerth01 • Jun 26, 2026 ★ 1
It seems as if every other 10 day sensor I have is faulty. I’ve had to replace two in the last 24 hours and frankly speaking I spend way too much money on this product for it to not work.
Rfthuofd • Jun 26, 2026 ★ 1
I’ve been using the G7 for over 2 years. Having access to near real time glucose readings is super helpful for managing diabetes. However, there are always issues, which Dexcom does not address.
The latest one is that critical alerts on my iPhone get displayed as persistent, versus how I have them set (temporary). So annoying that I have to flick the alert off my screen. If I don’t, it blocks other notifications. This started over a month ago and despite calling tech support nothing has been done to put this back the way it was!

Other constant issues:
1) Sensors falling off before 10 days.
2) Inaccurate readings, requiring frequent calibrations.
3) When you stop a sensor, you still get prompted to re pair that same sensor! Annoying when you are trying to install a new sensor.
4) Direct to iWatch is very glitchy! It only works for me about 25% of the time!
5) Frequent lost sensor signal notifications, even when phone and watch are within 2 or 3 feet.

I’m about to switch to the Free Style Libre product and see if they have done a better job on the product and software execution.
.O_R. • Jun 26, 2026 ★ 1
App is horrible. Constant issues, disobeys notifications, incorrect error messages or no connection on the watch app. Wish I could rate 0 stars
Jaco Jones • Jun 26, 2026 ★ 3
When wearing headphones, critical alerts blast at full volume. Ear damaging level for sure (I’m an audio engineer so I’d know.)

Also, I have my headphones connected to my phone and laptop- after the critical alert sounded it started playback on a video in a different tab. Very strange.

Sorry to leave these requests in a review- I tried to submit on your website but i couldn’t find it.
pedro of thd house • Jun 26, 2026 ★ 1
The developers keep making this app less user-friendly. Every time they change something it gets more annoying. It used to be that alerts were customizable but now they’re all listed as critical and continue to vibrate the phone until you unlock the phone and acknowledge them. Not all alerts are critical! The app also refuses to accept calibrations when sensors need significant adjustment. You need to undo all of the changes you’ve made in the past year dnd fix the calibration issue.
Cat lover12345! • Jun 24, 2026 ★ 5
I got diabetes in February 2025 and my diabetes has improved so much over the years! this is the best diabetes app ever had! when I got my pump the app connected right to it. It’s awesome I would recommend it!!
Mzzritac • Jun 24, 2026 ★ 4
Why does the notifications keep going off when your in a 12 hour grace period?
Why don’t it just send out a notification a few hours reminding to replace like it does when it say when we have 24 hours to expire that’s makes my family turn notifications off to stop the loud ringing. Then they don’t get the notifications if I’m really in need of help
Zom- b • Jun 24, 2026 ★ 1
I have had this for 2 days now to help me monitor my glucose level especially at night and early morning because I experience light headedness. At least 4 times a day the connection is lost. I turn off my Bluetooth then on again and sometimes it connects. Is the unit defective?
Albert Einstein Jr • Jun 24, 2026 ★ 5
Makes my life function 👍
Malinki42 • Jun 24, 2026 ★ 1
Yet again, a new kind of failure. Time to change the sensor. Changed it, scanned sensor cylinder, won’t pair. Turn everything off and back on, multiple times, still won’t pair. No other G7 devices within two miles. When it does pair and work, the numbers are always too high or too low. Ask Dexcom and my HBA1C should be 8.9. Go to doctor for real HBA1C and it’s 6.8. This is just another shabby tech scam. DO NOT USE!!!!
michaelivanov0 • Jun 23, 2026 ★ 1
Dexcom please remove this stupid stupid feature where every alert is critical its the worst thing on earth its up there with a lot of bad things. If my high blood sugar is set at 180 and my blood sugar is 182 boom critical alert incoming. Your music gets paused your video gets paused and its tedious to unpause as it lasts likr a few seconds. Its so annoying when im playing music in the car as theres a whole vibe and it gets interrupted like an unwanted guest. Plus if your doing voice memos those get stopped and ruined, happened to me too many times. Dexcom dont start with the “oh im sorry about that well get back to you” no tell your team to fix this yesterday. Oh one more thing you cant turn it off. The app bas sound profiles ehrre notifications are either vibrate only or play a sound, but recently all notifications are all critical and its the worst thing ever. If you try to turn off critical notifications the app doesnt work at all and it makes you tun if on, same with regular notifications. Look I get it if its urgent low or something like that but if its just a tiny but hogh thats just stupid. Dexcom get this fixed yesterday. Stop procrastinating.
Cynartemis83 • Jun 23, 2026 ★ 2
A month ago I switched to Free style libre 3 bc I was having issues with the 10 day G7. The reading were off by 20 points or more. Constant recalibrations, insane amount of alarms for the smallest things. Especially when i was changing sensors ad if the world was ending. I would habe to install the app temporarily just to get it to stop among other glitches. The constant calls to customer service for bad sensors and all they could do was replace sensors. I felt like this was just a bandaid nit getting to the root of the problem. but after using the Libre 3 I realized that the G7 was way better in so many ways. First the app itself is like professional college level while Freestyle is on 2nd grade level. I was not able to enter my own numbers or calibrate or enter my meds or track my foods. With dexcom i could use it like my food journal it would track my pre and post sugars. Freestyle is as basic as they come. That may be fine for some but as organized and detailed oriented as i am i need all the “bells and whistles “. The free style has been altering me in the middle of night for low sugar below 69, i got up and tested and i was 125. I know there are no devices tht are 100% accurate and they will have glitches but freestyle is just not for me. Im hoping the 15 day wear will be better. Im hoping to give a better star rating if i see improvement with the 10 and 15 day wear.
RBravoJ • Jun 22, 2026 ★ 2
I don’t like the app is not enable to work in the background. The app has to be open all the time.
The critical alarm sounds when I sleep very late at night and the phone and the sensor are close enough. This is annoying and I have to close the app and disabling the alerts to have a good rest and sleep.
The app notifications have to be optional but they are mandatory to keep the tracking.
I’m thinking in using other sensor.
atx.vixer • Jun 22, 2026 ★ 1
These sensors fail weekly, i am constantly contacting dexcom support just for them to send me sensor after sensor because they can’t push out a functioning product. These critical malfunctions are life threatening and never happened with the G6. This company would rather you spend 3000 dollars a month than to actually do something for their consumers