Background While there are numerous mental health apps on the market today, less is known about their safety and quality. This study aims to offer a longitudinal perspective on the nature of high visibility apps for common mental health and physical health conditions. Methods In July 2019, we selected the 10 top search-returned apps in the Apple App Store and Android Google Play Store using six keyword terms: depression, anxiety, schizophrenia, addiction, high blood pressure and diabetes. Each app was downloaded by two authors and reviewed by a clinician, and the app was coded for features, functionality, claims, app store properties, and other properties. Results Compared with 1 year prior, there were few statistically significant changes in app privacy policies, evidence and features. However, there was a high rate of turnover with only 34 (57%) of the apps from the Apple’s App Store and 28 (47%) from the Google Play Store remaining in the 2019 top 10 search compared with the 2018 search. Discussion Although there was a high turnover of top search-returned apps between 2018 and 2019, we found that there were few significant changes in features, privacy, medical claims and other properties. This suggests that, although the highly visible and available apps are changing, there were no significant improvements in app quality or safety.

中文翻译：

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高度评价的智能手机健康应用程序的质量，有效性和属性的纵向趋势。

背景技术尽管当今市场上有许多心理健康应用程序，但对其安全性和质量知之甚少。这项研究旨在为常见的心理健康和身体健康状况提供高可见性应用程序的性质的纵向透视图。方法在2019年7月，我们使用六个关键词词在Apple App Store和Android Google Play商店中选择了10个搜索最多的返回应用程序：抑郁症，焦虑症，精神分裂症，成瘾，高血压和糖尿病。每个应用程序均由两名作者下载并由临床医生进行审查，并且对该应用程序进行了功能，索赔，应用商店属性和其他属性的编码。结果与一年前相比，应用程序隐私策略，证据和功能的统计变化很小。然而，与2018年相比，苹果App Store中只有34（57％）个应用程序的营业额很高，而Google Play Store中28个（47％）的应用程序仍排在2019年的前十名中。讨论尽管在2018年至2019年之间，顶级搜索返回的应用程序的营业额很高，但我们发现功能，隐私，医疗要求和其他属性几乎没有重大变化。这表明，尽管高度可见和可用的应用程序发生了变化，但应用程序质量或安全性没有明显改善。隐私权，医疗索赔和其他财产。这表明，尽管高度可见和可用的应用程序发生了变化，但应用程序质量或安全性没有明显改善。隐私权，医疗索赔和其他财产。这表明，尽管高度可见和可用的应用程序发生了变化，但应用程序质量或安全性没有明显改善。