Objectives Eating behavior changes are an essential component in long-term weight loss and key in reducing the risk of chronic disease. With increased access and use of app-based technology to monitor individual's health, the role of technology in eliciting eating behavior changes was investigated. Methods 498 African Americans were enrolled into Weight Matters, a culturally tailored, weight management intervention aimed at reducing risk factors of chronic disease in African Americans. Participants were randomized into a Tech group (N = 249, 89% female, 51.5 ± 13.4 yrs, BMI: 36.6 ± 8.3) that utilized app-based technology to track their fitness, diet, and health data and a Non-Tech group (N = 248, 88% female, 51.5 ± 12.5 yrs, BMI: 36.4 ± 7.7) that used paper-based tracking. The intervention consisted of bi-weekly educational sessions focused on health, fitness, and nutrition during an 18-week period with scheduled follow ups post-test and 12 months. In addition, participants received a one-year fitness membership. The Three Factor Eating Questionnaire (TFEQ-R18) was used to measure cognitive restraint (CR), uncontrolled eating (UE), and emotional eating (EE) at enrollment, post-test, and 12 months. Results Repeated measures ANOVA was used to compare the changes in the construct scores of CR, UE, and EE within-subjects as well as between-subjects. There were no significant differences in mean scores of CR (F(2, 426) = .78, P = 0.46), UE (F(2, 426) = .28, P = 0.76), and EE (F(2, 426) = 1.07, P = 0.34) between Tech and Non-tech groups. For CR, the mean differences between enrollment and posttest (χ = −1.03, P < 0.001) as well as enrollment and 12-month follow-up (χ = −.86, P < 0.001) were statistically significant. There was a significant mean difference between the enrollment and 12-month (χ = 1.15, P < 0.001) for UE while the other two comparisons were not significant. There were no significant differences observed in EE throughout the study. Conclusions Improvements in cognitive restraint and uncontrolled eating were observed in participants enrolled in an 18-week weight management intervention and the effect persisted after 12 months. However, the use of app-based technology to monitor their fitness, diet, and health data did not impact eating behavior change. Funding Sources Supported by the Centers for Medicare & Medicaid Services (CMS) (DHHS Grant # 1102017000118).