Table 2.

Key themes, subthemes, and quotes from semistructured interviews.

Themes, subthemes, and components					Verbatim examples
Key theme 1: perceived acceptability of the experimental intervention components
	Push notification component
		Technical aspect
			Basic push notification	It would be better if we could choose the time to receive notifications, and it would be better if we could receive the notification functioned similarly to a wake-up alarm that rings again if not checked...
			Advanced push notification	I lead a busy life, so receiving notifications was helpful. In fact, I think it was better for me to receive notifications frequently.
		Content aspect
			Basic push notification	The (content) of the notifications was all good. It would be nice to have additional features like setting reminders for taking medication. Or maybe some information on whether I've applied moisturizer or taken my medicine today. Something like that would be useful.
			Advanced push notification	The notification content was good enough as it was, with just simple and neat notifications.
	Human coach component
		Technical aspect
			Human coach off	It would be better if there was a feature that allowed patients to send messages to report any technical errors or issues...It might be better to communicate using this feature.
			Human coach on	I wish there was a channel where atopic patients could communicate with each other.
		Content aspect
			Human coach off	It would be great if we could receive feedback for emergency situations.
			Human coach on	For example, it would be more effective to ask direct questions like 'have you reduced your medication dosage?' rather than asking about difficulties or inconveniences...
Key theme 2: satisfaction with the core intervention components
	Self-monitoring
		Building health habits		I used to forget to take my medicine, but ever since I started using the app to check it, I've been taking it every morning and before bed, and I've been doing it consistently. I've established a routine of recording it separately from the app. By recording the questionnaire every day, I can now monitor the daily improvement or worsening of my condition, which was the best part of the app.
	Learning course
		Acquiring reliable information		It was great to learn about the parts that I used to miss with reliable information.
Key theme 3: suggestions for improvement on the overall intervention program
	Diversity of daily self-monitoring form questions				I wish, that depending on the symptoms, different questions would be asked to determine whether the symptoms improved or worsened from the previous day.
	Burdensomeness of self-monitoring feature				Taking pictures of my body to check the skin lesion was burdensome. The questionnaire was too lengthy.
	Not tailored contents				There was information that would have been useful, if symptoms hadn't been so severe. It would be better to recommend it to patients with mild symptoms. The quiz following the video was so simple that I didn't even need to watch it and could simply answer the questions correctly. This is why I stopped watching the weekly videos.
	Motivating factors				It would be great to include elements that can boost motivation, such as fun factors or any benefits.
	Technical issues				There were times when I couldn't continue with the survey for a few days because some questionnaire items wouldn't move forward at all. So, it would be great if those issues could be improved.