GlucoGram 4.3.6 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. The program is categorized as Lifestyle Tools.
From the developer:
GlucoGram is an macOS app that lets you view your current glucose trend and level in the macOS status menu. At a glance, you can easily see when your glucose is trending high, low or just right. GlucoGram is compatible with all Dexcom Share CGMs. To get up and running, open the GlucoGram preference window and enter your Dexcom Share credentials.
GlucoGram is able to update the glucose data every 5 minutes on average.
You may want to check out more software for Mac, such as DivotTracker, SafeDog or ezManagerMax, which might be related to GlucoGram.