Diet-related mHealth Apps Content Analysis

This quantitative content analysis study evaluated the content, features, and quality of commercial diet apps in Asian marketplaces. Inclusion criteria encompassed both free and paid English-language apps for general dietary information. Apps that were disease-specific or redundant were excluded. App descriptions were extracted and evaluated by two independent research dietitians using a 100-point rubric based on predefined variables (e.g., language options, credibility, food databases, valuable features, health-behavior theory and technical quality). Good inter-rater reliability was achieved (kappa = 0.726; intraclass correlation coefficient = 0.763).