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Search result half-life (t½) and the proportion of apps remaining in the search results at the end of the study.
| Search term | Platform | Search result t½ | Apps remaining at end of study |
| Depression | Android | 130 days | 37.8% |
|
|
iOS | >9 months | 82.7% |
| Bipolar disorder | Android | 195 days | 48.4% |
|
|
iOS | >9 months | 91.1% |
| Suicide | Android | 115 days | 31.6% |
|
|
iOS | >9 months | 91.2% |
