The Dexcom G5® Mobile Continuous Glucose Monitoring (CGM) System is the first device that lets you treat without pricking your finger.*

Use this app if you have the Dexcom G5 Mobile CGM System.

Medicare beneficiaries should not use this app. The beneficiary may NOT use their phone for display of Continuous Glucose Monitoring (CGM) data and still be eligible for reimbursement by Medicare for Therapeutic CGM.

The Dexcom G5® Mobile Continuous Glucose Monitoring (CGM) System provides real-time glucose readings for patients with type 1 or type 2 diabetes every five minutes. With Dexcom G5 Mobile, dynamic glucose data can be accessed and shared safely and conveniently anywhere, anytime to your smart device.

* CGM-based treatment requires fingersticks for calibration; may result in hypoglycemia if calibration not performed or symptoms/expectations do not match CGM readings.

The Dexcom G5 Mobile CGM System provides personalized trend alerts right on your smart device and lets you see when your glucose levels are going too low, or too high, so you can better manage your diabetes. The Alert Schedule feature lets you schedule and customize a second set of alerts. For example, you can set the schedule to match your work hours and have different alert settings during the rest of the day. Custom alert sounds are available, including a Vibrate-Only option on the phone for glucose alerts other than the Urgent Low Alarm.

The Always Sound setting allows you to receive certain Dexcom CGM Alerts even if your phone sound is off, set to vibrate, or in Do Not Disturb mode. This will allow you to silence calls or texts but still receive CGM Alerts, including Low and High Glucose alert, Urgent Low Alarm, and Rise and Fall Rate alerts. Always Sound is on by default. A Home screen icon shows you if your Alerts will sound or not. For safety, three alerts cannot be silenced: Urgent Low Alarm, Transmitter Failure, and Sensor Failure.

In addition to the exceptional performance provided by the Dexcom Sensor, you’ll receive other valuable features:

• Intuitive and user-friendly interface
• Dexcom SHARE® remote monitoring is built into the G5 app, allowing you to share your glucose data with up to five followers, who can remotely monitor your glucose data and trends on their compatible smart device with the Dexcom Follow app. Share and Follow functions require an internet connection.
• Health App access so you can share retrospective glucose data with third party apps
• Today view widget, which allows you to view your glucose data on the lock screen of your smart device

Apple Watch

View your glucose information, trend graph, and alerts and alarms right from your wrist with the Dexcom G5 Mobile Apple Watch app:

• Use the digital crown to scroll through 1, 3, or 6 hours of glucose trend data
• Dexcom G5 Mobile complications allow you to view your glucose number and arrow from your watch face
• Add the Dexcom G5 Mobile app to the Dock and enable background refresh for best performance

Customer Reviews

This app store should not be used as your first point of contact to resolve technical or customer services issues. In order to protect your privacy and personal information, and promptly resolve any technical or customer services issues you are having with any Dexcom product, please contact 1-888-738-3646.

Dexcom is required to follow up with customers regarding product-related complaints. If Dexcom determines that your comment/complaint requires follow up, a technical support representative will attempt to contact you to gather more information regarding your comment/complaint.

What’s New

Version 1.7.10

Performance enhancements and bug fixes.

Ratings and Reviews

3.0 out of 5
1.2K Ratings

1.2K Ratings

Itoig ,

New update is nice but causing issue with Apple Music

I do enjoy the most recent update. I love the idea of the schedules, please add the option to add more custom schedules. The issue i am having is since the update anytime i am listening to music using Bluetooth the audio on the music volume goes way down when it is doing its checks with the transmitter. Then after awhile when it does it again, it turns the volume back up. I tested it the last few times the audio went down, only left the Dexcom app and music open. Listened to some music for a bit the. It went down. I double clicked the home button, closed the Dexcom app and the music instantly went back up. Tested it again and it can be replicated. So somewhere in the recent update the audio Dexcom or a process causes it to lower the other audio so it can be heard but if it has nothing to signal one it just lowers it and leaves it. This seems to be a bug with this update and needs to be fixed, because i can’t keep closing the Dexcom app, i can’t keep adjusting the volume to only be surprised when it goes back up and blasts my ears out and i can’t stand it to let it just do itself every few minutes. Please fix the bug before i have to roll it back to the previous version, which i would rather deal with the out Of date version warning than blasting my ears out


Developer Response ,

Hi Itoig. We'd like to follow up with you. If you'd like a member of our Team to reach out, please send your contact information along with your app store username or review to, and we will be in touch directly. Thank you!

staring at the screen ,

Frustrating issues especially with Apple Watch

I love my Dexcom but there are a number of frustrating issues with this app, some of them new in the most recent revision, I believe. First, I'm no longer getting haptic (vibrating) alerts on my Apple Watch (series 3 with watch OS 4.2.2). I have tried different settings - both do not disturb and without, and having the sound on and off - but unless I'm missing something, the haptics are broken. I do get Dexcom alerts on the watch, but they are visual only. Which is frustrating, since the haptic element is extremely valuable! Also, as other people have said, it is bizarre that dismissing alerts on the watch seems to do nothing on the phone - this needs to be fixed. If you dismiss an alert on the watch, it should communicate with the app instead of having to drag out the phone to avoid constant watch alerts. In addition, the inability to silence the urgent low alarm is a problem - it needs to be vibrate only. As an attorney, I am sometimes in court where if my phone went off, there could be professional consequences! Finally, a relatively minor issue, but if I'm listening to a podcast using the Overcast app, when I open the Dexcom app on my phone, the podcast stops playing. (I have the Dexcom app on the "alerts do not sound" setting.)

Developer Response ,

Hi staring at the screen. We'd like to follow up with you. If you'd like a member of our Team to reach out, please send your contact information along with your app store username or review to, and we will be in touch directly. Thank you!

tlbarr1 ,

Has good potential but needs improvement

Diabetes is the second cause of blindness, Second only two glaucoma. Accordingly, using the Dexcom apps with the built-in voiceover screen reader with an iPhone. Which begs the question, why is the Dexcom Ap not better designed for blind users using the built-in voiceover iPhone app? The apps are barely usable with voiceover, but needs labeling of buttons, alerts should automatically declare what they are and what the blood sugar level is currently running to deserve the alert; so that a diabetic can determine whether something needs to be done immediately or later on without having to resort to stopping to get the phone out and look to find out what is going on, as well as make the items most used available from the main screen of the app rather than having to go to other menus to find out what is needed. These are a few of many bugs which demand immediate attention. I love what this invention does and could potentially do for all diabetics whether visually impaired or not or use an Apple Watch. even a blind diabetic can use this app to maintain a constant blood sugar, but still could be improved so that average non-screen reader users can use the app in the dark without assistance. If the alerts spoke The low blood sugar levels automatically, that would cure many ills with the Dexcom apps in my experienced. These ideas should be easily and quickly implemented into the Dexcom app programming.

Developer Response ,

Hi tlbarr1. Thank you for taking the time to leave a review. We will pass your feedback along to our Product Team for consideration in future updates.


DexCom, Inc.
87.2 MB

Requires iOS 10.0 and watchOS 3.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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