Table 4 Self-reported app use
| Â | n |
|---|---|
Device downloads | |
 iPhone | 9 |
 iPad | 5 |
App use over 4Â weeks | |
 Less than 3 times in total | 2 |
 Once a week | 1 |
 Several times a week | 9 |
 On a daily basis | 2 |
Functions primarily used | |
 My overview | 1 |
 Status | 4 |
 New habits | 0 |
 My health data | 6 |
 Quiz | 3 |
Would continue app use | |
 Yes | 4 |
 Yes after improvements | 5 |
 Maybe | 2 |
 No | 3 |