Table 1.

Persuasive system design (PSD) and suggestions for the pelvic floor muscle training (PFMT) apps.

PSD category and subcategories		Suggestions for PFMT app features
Primary task support
	Reduction	The app lists effective intervention for UIa.
	Tailoring	The app provides PFMT information according to the target user characteristics.
	Personalization	The app provides personalized content according to the individual user.
	Self-monitoring	Users are able to monitor their progress.
Dialogue support
	Rewards	A trophy is given after the user has completed PFMT schedule.
	Reminders	This is a crucial feature because PFMT needs to be done daily.
	Liking	Likable minimalist design with user’s choice of colors
	Social role	Use of a virtual physiotherapist
Credibility support
	Trustworthiness	The app provides unbiased information regarding PFMT.
	Expertise	The app provides the professional background and expertise of the content developers.
	Surface credibility	The app appears professional.
	Authority	The app bears the logo of the developer’s institution.
	Third-party endorsements	The app includes endorsing statements from relevant professionals such as physiotherapists or urogynecologists.
Social support
	Social learning	The app allows users to see the deidentified general performance of all users.
	Social comparison	The app also allows users to share their achievements with other users.
	Normative influence	The app normalizes the experience of UI and learning PFMT by connecting a user with other similar users.

^aUI: urinary incontinence.