ABSTRACT
Background and Aims
The Karafs application, a popular mobile health tool in Iran with nearly 5 million users, supports personalized diet plans, healthy cooking, and sports training. This study aimed to evaluate the usability of the Karafs application using the think-aloud method to identify user interaction challenges and enhance its effectiveness.
Methods
Fifteen participants (2 men, 13 women; mean age 22 years) evaluated the Karafs application using the think-aloud method. Usability problems were identified, categorized, and assessed for severity. The evaluation process was analyzed, with an average duration of 10.58 ± 3.46 min.
Results
Multiple usability issues were identified, primarily related to unclear system messages and navigation challenges. The severity of problems was classified, with most being minor but impacting user efficiency.
Conclusion
The think-aloud method effectively identified usability issues in the Karafs application, providing insights for improving user experience. Addressing these issues can enhance the application’s functionality and support healthier lifestyle choices.