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Iterative Development of an Innovative Smartphone-Based Dietary Assessment Tool: Traqq
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Mobile applications for weight management: theory-based content analysis.

Kristen M J Azar1, Lenard I Lesser, Brian Y Laing

  • 1Palo Alto Medical Foundation Research Institute, Palo Alto.

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Summary
This summary is machine-generated.

Smartphone apps for weight management are popular but lack quality. This study found that diet and fitness apps generally scored low on incorporating effective behavior change strategies.

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Area of Science:

  • Digital Health
  • Behavioral Science
  • Mobile Health (mHealth)

Background:

  • Smartphone applications (apps) for weight management are widely used.
  • The quality and effectiveness of these health apps are not well understood.

Purpose of the Study:

  • To evaluate diet/nutrition and anthropometric tracking apps.
  • Assess apps for features aligned with behavior change theories.

Main Methods:

  • Comparative assessment of top-rated free Health and Fitness apps from the iTunes App Store.
  • 200 apps screened, 23 eligible and categorized.
  • Evaluation using behavioral theory and Fogg Behavior Model instruments.

Main Results:

  • Eligible apps categorized into diet tracking, healthy cooking, weight tracking, and decision-making.
  • Mean behavioral theory score: 8.1/100; Mean persuasive technology score: 1.9/6.
  • Lose It! by Fitnow Inc. received the highest scores.

Conclusions:

  • Most evaluated apps scored poorly on integrating behavior change strategies.
  • There is a significant gap in the quality of weight management apps regarding behavioral science principles.