Effectiveness of DiaWell, an artificial intelligence–based smartphone application, on glycaemic control and quality of life among patients with type 2 diabetes mellitus: a quasi-experimental study from South India

Diabetes is a condition where the body struggles to manage sugar in the blood, a problem that affects millions of people in India and across the world. When blood sugar stays too high for too long, it can damage the heart, kidneys, eyes, and nerves. To keep this damage at bay, doctors rely on a blood test called HbA1c, which acts like a report card showing how well a person has controlled their sugar over the last few months. For many patients, managing this condition is a daily struggle involving strict diets, medication schedules, and frequent check-ups. Yet, in many parts of India, especially in busy public hospitals, patients often miss follow-up appointments or forget to track their progress, leaving their health to drift. In recent years, doctors and researchers have turned to mobile phones as a tool to help. The idea is simple: if a patient can use a smartphone to log their meals, track their sugar levels, and receive reminders, they might stay on track better than they would on their own. But while high-tech medical devices exist in wealthy nations, they are often too expensive for the average person in India. This raises a practical question: can a simple, locally made smartphone app, powered by smart computer programs, actually help people with diabetes get better?

A team of researchers at JSS Medical College in Mysuru, South India, decided to find out by testing a new tool they built called DiaWell. They wanted to see if this app could help patients control their blood sugar and feel better about their lives. The study took place over eighteen months at a large teaching hospital. The researchers recruited 360 adults who had type 2 diabetes. They divided these people into two groups. One group, the experimental team, continued their usual medical care but also used the DiaWell app for six months. The other group, the control team, received only their standard medical care without the app. The app was designed to be a digital assistant. Patients could use it to record their blood sugar readings, blood pressure, and weight. It helped them log what they ate and even estimated the calories in their meals using artificial intelligence. The app also sent reminders to take medicine and allowed patients to upload photos of their prescriptions or lab reports. On the other end, doctors could look at a dashboard to see how their patients were doing and spot anyone who was at risk.

The results of the six-month trial showed that the app made a real difference, especially for the group that used it. Both groups saw their blood sugar levels improve, which is a good sign. However, the group using the app saw a bigger drop in their numbers. Their average blood sugar score, known as HbA1c, fell from 8.80 percent at the start to 7.44 percent by the end. The group without the app also improved, but their score only went down from 8.45 percent to 7.60 percent. What makes this finding particularly interesting is who was in the group using the app. At the beginning of the study, the people using DiaWell were actually in worse shape than the people in the other group. They were older, more likely to need insulin injections, had a stronger family history of diabetes, and reported feeling less satisfied with their lives. Despite starting with these heavier burdens, the app users managed to catch up to the healthier group. By the end of the six months, both groups had reached the same level of blood sugar control, even though the app group had started with a much harder job to do.

The study also looked at how the patients felt about their lives, measuring their quality of life in four areas: physical health, mental well-being, social relationships, and their environment. At the start, the group that would use the app felt significantly worse in all these areas compared to the other group. But after six months of using the app, their feelings changed dramatically. They reported significant improvements in every single area. Their physical health felt better, their mental state improved, their social connections strengthened, and they felt more at ease with their surroundings. In contrast, the group that did not use the app saw no real change in how they felt about their lives. The researchers noted that the app users seemed to gain a sense of control and confidence, which likely helped them feel better even before their blood sugar numbers fully settled. This suggests that the tool did more than just track numbers; it gave patients a way to manage their condition that made them feel more capable and less overwhelmed.

The researchers were careful to point out that their study had some limits. Because the groups were not chosen by random chance, the starting differences between them were real and significant. The group using the app was naturally tougher to treat. Yet, the fact that they still managed to reach the same level of control as the healthier group is a strong signal that the app worked. The study did not prove that the app is a cure, nor did it test the app for years into the future. It did, however, show that a locally designed, low-cost tool can be a powerful addition to standard medical care. In a place where expensive, high-tech medical devices are out of reach for most, this kind of simple, accessible technology offers a way to bridge the gap. It allows patients to take charge of their health in a way that fits their daily lives, proving that even in resource-limited settings, smart digital tools can help people with diabetes live healthier, happier lives.