Table 8.

Key issues and recommendations for mHealth app compatibility issues

Key issues found	Recommendations
- Developers not implementing impor-	mHealth app users often use apps under very
tant UI requests by elderly/disabled	stressful conditions e.g. managing severe illness
users	–key UI/UX issues reported need to be priori-
	tised by developers
- Changing app interface frequently or	- Implementing simple designs for mHealth
implementing complex designs	apps
- One interface for all users	- mHealth users are very diverse – need to al-
	low users to switch between / configure inter-
	face depending on their diverse needs and ex-
	periences
- Issues with old firmware versions and	- Many mHealth users have old handsets – de-
updates	velopers need to test UI thoroughly on differ-
	ent devices with different operating systems,
	screen sizes, etc before releasing updates