“…Autocomplete functions (41,93,98), crowdsourcing-based semi-automated approaches (51), barcode scanners and drop-down menus (51,56), and comprehensive (exact products and brands) databases improved logging (93,98). Additionally, reports of progress based on logging commenting on overall diet quality, rather than just calorie tracking, were highly valued (38,43,93,95,(97)(98)(99). Narrative game-style applications (typically games with a character and storyline) were more appealing to adolescents than adults, and emotional and social realism were important for motivation (50,62,77,85,89).…”