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. 2019 Apr 25;9(4):e025381. doi: 10.1136/bmjopen-2018-025381

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© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Selected screenshots showing the user interface of the mobile application. (A) Scheduled educational videos preloaded in the app. (B) User interface to record symptoms and risk factors. (C) User interface showing an assessment of symptoms in the chronic obstructive pulmonary disease (COPD) action plan.