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The categories of apps used in our evaluation and the constituent search keywords for each group.
| Purpose and app category | Keywords | |
| mHealth | ||
|
|
Cycling | Cycling |
| Diet | Diet, eating | |
| Exercise | Exercise, workouts | |
| Apps with wearable hardware | N/Aa | |
| Heart | Heartrate, heart rate | |
| Mood | Mood, happiness | |
| Running | Walking, running | |
| Sleep | Sleep | |
| Step count | Steps | |
| Weight | Weight, body fat | |
| Other self-tracking metrics | ||
|
|
Spending | Spending, income |
| Time | Time keeping | |
aN/A: not applicable.
