Case Study: Glucose Buddy

2 min read

An smartphone with the "Glucose Buddy" Interface, and a blood sugar measuring device

Why are case studies relevant?

Case studies can provide detailed and real-world evidence of the effectiveness of the app in question, which can help to build confidence in its potential benefits.

They also provide essential information about the feasibility and acceptability of the app in clinical or real-world settings. They can contribute to the growing body of evidence on the effectiveness and usability of digital health interventions, which can help to inform policy and practice in this rapidly evolving field.

This article will overview a case study revolving around a diabetes management app called “Glucose Buddy.”

The case study

The case study is a randomized controlled trial that aimed to test the effectiveness of a diabetes self-management smartphone application for adults with type 1 diabetes. The study involved 75  participants who were randomly assigned to either an intervention group (who received the smartphone application “Glucose Buddy”) or a control group (who received standard diabetes care).

What is Glucose, Buddy?

Glucose Buddy is a mobile application designed to help individuals with diabetes manage their condition by tracking and monitoring their blood glucose levels, food intake, exercise, and medication. The app was created by developers and healthcare professionals, including endocrinologists and certified diabetes educators.

The app provides a range of features to help people manage their diabetes, including:

Blood glucose tracking
Users can log their blood glucose readings and view them in a chart format to track their progress over time.

Food logging
The app includes a database of over 300,000 food items, allowing users to track their carbohydrate intake and see how it affects their blood glucose levels.

Medication tracking
Users can log their medication dosages and set reminders to take them on time.

apple is available for this applicationandroid is available for this application
In-app purchases

Results of the case study

The study found that the intervention group had significantly improved glycemic control (as measured by HbA1c levels) compared to the control group at 6-month follow-up.

The study found that the intervention group significantly reduced HbA1c levels compared to the control group. The intervention group also significantly improved blood glucose levels and reported an increase in diabetes management behaviours. The study concluded that Glucose Buddy can be an effective tool in helping individuals with diabetes improve their condition.

Additionally, the intervention group reported greater diabetes knowledge and self-efficacy and higher levels of treatment satisfaction. The study also found that the smartphone application was feasible and acceptable to participants, with high engagement and use reported throughout the study.


The Glucose Buddy app was found to be effective in improving diabetes management by reducing HbA1c levels and improving blood glucose levels. The study highlights the potential of mobile applications to help people manage chronic conditions such as diabetes. Glucose Buddy is a valuable tool that can help individuals with diabetes monitor their blood glucose levels, track their diet and exercise habits, and share their data with healthcare providers and family members.


Kirwan M, Vandelanotte C, Fenning A, Duncan MJ. Diabetes self-management smartphone application for adults with type 1 diabetes: randomized controlled trial. J Med Internet Res. 2013 Nov 13;15(11):e235. doi: 10.2196/jmir.2588. PMID: 24225149; PMCID: PMC3841374.

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