California had approximately 4,037,000 people with diabetes in 2017 (American Diabetes Association [ADA], 2018). Prolonged and uncontrolled type 2 diabetes mellitus (T2DM) can lead to several comorbidities, such as nephropathy, retinopathy, neuropathy, and cardiovascular sequela (Molinaro & Dauscher, 2017). The increased death rate and comorbidities led to an exploring whether adult patients with T2DM could utilize diabetes self-management education (DSME) with the use of a mobile application to reduce daily blood sugar levels significantly compared to no self-management education within six weeks. A convenience sample of six participants (N = 6) who met the inclusion criteria and volunteered to participate in the Clinical Scholarly Project (CSP). However, only four participants (N = 4) attended the last session. Therefore, the result of this CSP was based on the results of the four participants. The paired t-test was utilized to compare the knowledge and blood glucose level between pre-intervention and post-intervention. The individual participant’s knowledge was enhanced significantly after the intervention. Three of the participants’ blood glucose measurements were significantly improved after the intervention. The finding inferred no correlation between DSME and reducing blood glucose measurement for adult patients with T2DM in six weeks.