Recent advancements in smartphone technology have provided new methods of dietary assessment. An iTunes application (app) called Meal Snap lets users take pictures of the meal they eat, and then estimates the calories of the food items eaten. We conducted a pilot study to explore the user-friendliness and calorie estimation functions of the Meal Snap app. Two female nutrition graduate students pilot-tested the Meal Snap app. Using the app, each student took pictures of foods and drinks consumed daily for two weeks. The data were analyzed using the Nutritionist Pro software, version 4.4.0. The mean daily caloric intake obtained from the Meal Snap was then compared with that of Nutritionist Pro. Paired samples t-tests and correlations were carried out using SPSS, version 19. Results indicated there was no significant difference in mean daily caloric consumption between Meal Snap and Nutritionist Pro (p= 0.706). Additionally, there was a significant correlation between Meal Snap and Nutritionist Pro calorie counts (Spearman r= 0.625, p< 0.001). It took about 35 minutes per week (or 5 minutes/day) to snap pictures and edit descriptions, whereas entering data for calorie analysis with Nutritionist Pro took about 85-90 minutes per week (about 13 minutes/day). Findings suggest that Meal Snap may be a user-friendly tool to estimate dietary intake. Future research should include a larger sample and people of diverse ethnic backgrounds, dietary habits and age groups. DOI : 10.14302/issn.2379-7835.ijn-14-566 Corresponding Author: Ming-Chin, Yeh, PhD. Associate Professor. CUNY School of Public Health at Hunter College. 2180 Third Ave, New York, NY 10035. Phone: 212-396-7776 [1], Fax: 212-396-7644 [2]. myeh@hunter.cuny.edu