Dexcom Clarity is a free software platform that organizes and displays data from your Dexcom continuous glucose monitor (CGM) into visual reports, trend charts, and actionable insights. It works with the Dexcom G6 and G7 systems and is available as a mobile app (iOS and Android) and a web-based dashboard. There’s no subscription fee for patients or clinics.
What Clarity Actually Does
Your CGM sensor collects hundreds of glucose readings every day. On its own, that’s a flood of numbers. Clarity takes all of that raw data and turns it into reports you can actually interpret: trend graphs, pattern summaries, and statistics that show how your glucose has behaved over days, weeks, or months. It also lets you share this data directly with your healthcare team so they can review it before or during appointments, rather than relying solely on a single lab draw.
Think of it as the reporting layer on top of your CGM. The sensor measures, the Dexcom app displays your real-time number, and Clarity steps back to show you the bigger picture.
Key Metrics You’ll See
Clarity tracks several glucose metrics, but three matter most for day-to-day management.
Time in Range (TIR) is the percentage of time your glucose stays between 70 and 180 mg/dL. It’s one of the strongest predictors of long-term complication risk, and it’s easy to grasp at a glance. A commonly referenced target for most adults with diabetes is around 70%. You can customize your personal TIR goal within the app.
Glucose Management Indicator (GMI) estimates what your A1C would be based on your average CGM glucose. This is useful because it updates continuously rather than requiring a blood draw every three months. If your GMI and your lab A1C don’t match up well, that gap itself can be a clue worth discussing with your provider, as it sometimes points to glucose variability or other factors affecting red blood cells.
Average Glucose is straightforward: the mean of all your readings over a selected time period. It gives a quick snapshot of overall control but doesn’t tell you much about the highs and lows hiding inside that average, which is why TIR and the pattern reports are more revealing.
Pattern Detection and Reports
One of Clarity’s more useful features is automated pattern recognition. The software scans your data and identifies up to four recurring patterns within any date range you select. For example, it might flag that your glucose consistently drops low overnight or spikes after lunch on weekdays. Each pattern includes the specific time window, how frequently it occurs, and whether a “rebound” follows (a high after a low, or vice versa).
The Overview report combines a glucose summary dashboard, a pattern summary, and highlights your “best glucose day” for the selected period. The Patterns report goes deeper, breaking down each identified pattern with graphs and possible considerations listed at the bottom. These aren’t treatment recommendations, but they give you concrete talking points for your next appointment.
Notifications and Goal Tracking
Clarity sends push notifications to your phone when new insights are available, and you can also opt into a weekly email summary. The goal-tracking feature lets you set a personal Time in Range target and monitors your progress against it, including highlighting your best days. You can adjust your target range and notification preferences in your profile settings.
How Data Gets Into Clarity
If you use the Dexcom G6 or G7 mobile app on your phone, your glucose data syncs to Clarity automatically through the cloud. There’s nothing extra to set up beyond having an internet connection.
If you use a standalone Dexcom receiver instead of the phone app, the process is manual. You’ll need to connect the receiver to a computer with a USB cable, install the Clarity Uploader software, and upload your data through the web browser. The uploader walks you through the steps, but it does require a Windows or Mac computer and a reliable network connection. For most people using the phone app, this is never necessary.
Sharing Data With Your Healthcare Team
Clarity includes a built-in sharing system that lets your provider see the same reports and trends you do. Your clinic provides a sharing code, and you enter it in the app under Profile, then Authorize Sharing. Once you accept the invitation and consent to share, your provider’s office can pull up your glucose data remotely. This is particularly valuable for telehealth visits or for providers who want to review your trends before an in-person appointment rather than spending appointment time scrolling through numbers together.
The clinic side of Clarity is also free. Providers register through a separate web portal and can view data for all patients who’ve authorized sharing, making it practical for diabetes care teams managing large patient panels.
Platforms and Compatibility
The Clarity mobile app runs on iOS 13.0 and newer and Android 9.0 and newer. The web version works on Windows 8 or 10 using Chrome, Firefox, or Edge, and on Mac OS 10.14 or 10.15 using Chrome, Firefox, or Safari. If you’re accessing it through a browser, you’ll want to use desktop mode rather than a mobile browser for the full experience.
Clarity is available in multiple regions, including the United States, Germany, and Japan, though feature availability can vary by market.