Table 1.

Investigated product features of a fall prevention app. C: criteria.

Topic		Description
Detection
	C1	The app recognizes your fall risk based on a standardized test.
	C2	The app automatically detects your risk of falling if you carry your smartphone with you.
Decision making
	C3	The app leaves the decision to treat your fall risk to your health care professional.
	C4	The app itself decides about the treatment of your fall risk.
Comfort
	C5	In addition to the risk of falling, other health data such as medication can be stored in the app.
	C6	You can share the results of your fall evaluation with your health care professional or friends and family by email.
	C7	The following treatment appointments can be stored in the app.
Advice and support
	C8	The app contains a checklist of typical tripping hazards.
	C9	The app contains a guideline on how to react in the case of a fall for the falling person and the person who is helping.
Physical exercise
	C10	The app includes physical exercises to reduce your risk of falling.
	C11	The app includes an ongoing workout program to reduce the risk of falling.
	C12	The training integrated into the app is supervised by a therapist.
	C13	The training integrated in the app can be adapted to your personal needs (scope of training, exercises, time expenditure, and so on).
	C14	Within the integrated training, individual goals can be defined.
	C15	New social contacts can be made while using the app.
	C16	The training within the app includes playful elements such as awards, rankings, and so on.
Cost coverage
	C17	The costs of the app are covered by the health insurance company.