TABLE 2. Design Characteristics, Codes and a Set of Examples of User Comments.

Ser	Design Characteristics	Codes	Examples of User Comments
1	Reliability	+ Authentic information + Respectful in publishing info + Regular update − Spread false info − Discuss unrelated subject − Encourage panic	(+) “Information being shared with users is accurate” (−) “Instead of encouraging awareness, it encourages panic” (−) “Spreading of false information, and discussing unrelated subjects”
2	Performance	+ Well-functioning + Slow down the virus spreading − Incompetence − Unable to login − Important features missing	(+) “As soon as I see a new cases or deaths in the news, I check the app, and it has the updated numbers. Good maps, you can see the confirmed cases, deaths and more.” (+) “Can slow but not stop the spread of virus” (+) “The app even send me a phone call just to inform my physical & mental health so that I could ask any way for a diagnose or doctor service. Really appreciable service.” (−) “Leaves a lot of rooms for growth and improvement” (−) Tried to login from last 30mins but it’s only buffering.
3	Useful	+ Helpful app + Important app + Best app + Wonderful app + Very useful app + Good use − Worthless app − Worst app	(+) “Thanks for inaugurated such type of handy App. We’ll be benefited by using this” (+) “Great app is being very helpful for the purpose it was made” (+) “A PERFECT app for updates about the pandemic” (+) “Good app to keep track of the situation.” (+) Such a wonderful app.. provides information in easy and convenient method.. cool navigation links.. well done team for doing such noble cause. (−) “This app is the worst” (−) “Worst app with no necessary function. Data given in app is not updated regularly”
4	Supportive	+ Raise awareness + Support health ministry + Support self-care + Help to maintain social distance + Updated with the situation + Provide important info − Worthless app − Contain very little information	(+) “Raising calm awareness is the objective and seeing cases over time” (+) “Many thanks for coordinating to popularize information to people quickly and promptly.” (−) “Trivial Contains very little info compared to the J. Hopkins website for instance”
5	Secure	+ Don’t ask for personal info − Fair about digital privacy − Ask unnecessary resource permission −Ask unnecessary personal information	(−) “Takes too much resource permission to edit and read” (−) “I am concerned about digital privacy and this is just not okay, especially in this crucial time when information is crucial”
6	Privacy	+ Hide post (if needed) + No signup required + Anonymously accessible − Require phone number to sign up − Ask unnecessary personal information	(+) “There is no sign up required, and you stay behind a generic (+) “There is no sign up required, and you stay behind a generic name and avatar (Arlo, Moki, Paskel, etc)” (−) “I did not like that you have to sign up with your phone number before you can enter the app”
7	Flexibility	+ No word limit to post + Hide post (if needed) + Setup reminder for warning − Not accept a valid phone number	(+) “There is no word limit for your posts” (+) “You can hide posts if you feel uncomfortable or report if it’s bad” (−) “Repeatedly ask for the valid phone number though the number is valid according to users opinion”
8	Responsiveness	+ Receive feedback + React immediately − OTP is not received − Activation code is not received − Keep loading/slow response − Terribly slow	(+ “Always receive feedback & reactions” (−) “I haven’t received any OTP yet while installing it”
9	Usable/easy-to-use	+ Easy and convenient to access info + Intuitive navigation button/link + Understandable visual representation − Require help to launch − Poor organization of contents	(+) “Provides information in easy and convenient way cool navigation links” (−) “I think this app would be more helpful if stats were organized by country, rather than by region such anomalies would be easier to detect.Thank you.” (−) “Get the OTP code, but don’t know where to click so it will continue”
10	Culturally sensitive	+ Helpful for Bangladeshi + Help Brazilian + Useful for Panjab people + Useful for Vietnamese − Don’t understand the language	(+) “In case of testing corona virus, some may be confused whether to go to take treatment or not. In this case, this app is very much helpful for the people of Bangladesh.” (+) “Good app for tracking punjab COVID Stats alongwith curfew pass, labour registration, report mass gathering, foreign travelers. It’s good that govt is adding more public services to this app, Weldone” (−) “Not in English. So, can’t read”