Table 4.
Coding criteria and frequency among apps.
| Coding criteria | n | |
| General purpose | ||
|
|
Exercise promotion | 62 |
|
|
Diet | 10 |
|
|
Exercise and diet | 25 |
|
|
Appearance goals | 65 |
| Data logged | ||
|
|
Exercise completed | 84 |
|
|
Food consumed | 23 |
|
|
Weight | 56 |
| Specific behaviors | ||
|
|
Allows underweight goal setting | 21 |
|
|
Allows reporting of high or low calorie intake | 16 |
|
|
Response to low calorie intake | 8 |
|
|
Response to high calorie intake | 8 |
|
|
Response to not meeting exercise goals | 20 |
|
|
Rewards continuous use | 60 |
| Feedback | ||
|
|
Overall positive | 72 |
|
|
Overall negative | 19 |
|
|
Achievement-focused | 49 |
|
|
Failure-focused | 26 |
| Data sharing | ||
|
|
Other users | 32 |
|
|
Social media | 59 |
|
|
Automatic ranking | 6 |