Table 2.

Commonly identified domains from health app evaluation frameworks

No	Domain	Coverage/definition
01	Clarity of purpose of the app	A clear statement of the intended purpose of the app as well as the specificity of the users or the disease.
02	Developer credibility	Transparency of the app development and testing process, and accountability and credibility of the app developer, funders, affiliations, and sponsors.
03	Content/information validity	Readability, credibility, characteristics, quality, and accuracy of the information in the health app. The ability to tailor the app content per user preference and using simple language.
04	User experience	The overall experience of using an app in terms of its user friendliness, design features, functionalities, and ability to consider user preference through personalization function.
05	User engagement/adherence and social support	The extent of how apps maintain user retention using functionalities such as gamification, forums, and the use of behavior techniques as well as the extent of social support.
06	Interoperability	Data sharing and data transfer capabilities of the health apps.
07	Value	Perceived benefits and advantages associated with the use of health app.
08	Technical features and support	Health apps that are free from defects, errors, bugs, and quantity and timely updates. Technical support and service quality provided within the app.
09	Privacy/security/ethical/legal	Privacy and security domains pertain to data protection, cybersecurity, and encryption mechanisms for the storage and data transmission. Legalities of the health app that look at whether the health apps adhere to guidelines and have disclaimers concerning on clinical accountability.
10	Accessibility	This pertains to the ability of health apps to capture a wider audience and bridge the gap in access to health apps and healthcare services for vulnerable populations/people with disabilities.