In contrast, these factors explained only 12% of systolic and diastolic BP variability using a standard automated BP cuff. 6, 7 We previously found IBP to inappropriately rely on demographics in producing a BP estimate, as these factors explained 66% of systolic and 82% of diastolic BP variability. The method by which it produces its result is not disclosed, but it involves entry of user demographics predictive of BP (date of birth, sex, height, and weight), placement of the finger over the rear camera and illuminated light, placement of the microphone over the chest, and holding still for 45 seconds. In a previous validation study, 5 we found IBP to achieve the lowest possible British Hypertension Society accuracy grade and found it to misclassify 78% of hypertensive measurements as non-hypertensive. Instant Blood Pressure (IBP) is an inaccurate $4.99 mHealth app claiming to measure blood pressure (BP) with just an iPhone and no cuff. To what extent these ratings and reviews reflect the quality of apps and promote self-regulation of the app market is unknown. These ratings and reviews may foster crowd-sourced self-regulation of apps, as critical public commentary of poorly performing apps can reduce downloads, thereby driving app developers to release high-quality apps.
#Icare app reviews professional
In absence of assurance of quality through FDA oversight or independent review by advocacy or professional groups, consumers deciding whether to download mHealth apps are left considering user reviews and ratings. Narrative reviews typically document a user’s reasoning for his/her rating. 4 These ratings are typically scored out of 5 stars with higher ratings indicating a more favorable user experience. Smartphone owners consider user app ratings and reviews when deciding whether to download a given app. 2, 3 Consumer advocacy groups and professional organizations are largely absent or ineffective in providing independent reviews of the quality of these apps given the sheer number available. 1 The Food and Drug Administration (FDA) has largely avoided applying its regulatory oversight to this emerging marketplace. As of 2015, consumer app stores had >165 000 mHealth apps available for download, doubling the number from just 2 years prior. The smartphone revolution bolstered a rapid proliferation of mobile apps of various functionalities, including mobile health (“mHealth”) apps that deliver health and wellness technologies.
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