DIY Loop is an open-source, community-built automated insulin delivery (AID) system. It combines compatible insulin pumps and continuous glucose monitors (CGMs) to predict future glucose levels and automatically adjust insulin delivery. One of Loop’s biggest advantages is its high level of customization, giving users the ability to adjust glucose targets, create custom overrides for situations like exercise or illness, and tailor the system to their individual needs.

Unlike commercial AID systems, Loop is not FDA-cleared or supported by a traditional medical device company, meaning users are responsible for building, maintaining, and troubleshooting their own system. That DIY approach can require more technical knowledge, but it also gives users significantly more flexibility and control. Loop has remained one of the most well-known open-source AID systems, particularly for people looking for a polished experience with features such as remote caregiver monitoring and Siri Shortcuts integration.

The video above gives an overview of the app that was reviewed by members of the Loop community (thanks!). We walk through customizing settings, the different displays of insulin on board to trending glucose levels, and bolusing using emojis. With additional pump compatibility coming soon from Omnipod 5 and Tandem Mobi, Loop’s presence in the diabetes community is only getting stronger.

Would you try Loop or are you using it? Let us know in the comments!