We rated and ranked the apps based on 3 scores: (1) MARS quality score [26 (link)], (2) IMS Institute for Healthcare Informatics functionality score [27 ], and (3) consistency with HFSA guideline recommendations [10 (link)] with an additional question related to the number of self-care behaviors that the apps addressed. The MARS was used to rate app quality and includes 3 sections and a modifiable app-specific section: classification, quality, and satisfaction [26 (link)]. The classification section provides descriptive information about the apps. The objective app quality section includes 19 items divided into 4 scales: engagement, functionality, aesthetics, and information quality. The subjective quality section contains 4 items evaluating the user’s overall satisfaction. MARS items are scored using a 5-point Likert scale (1-inadequate, 2-poor, 3-acceptable, 4-good, and 5-excellent). The final MARS scores include 4 subscale scores, a total mean score, subjective quality score, and an app-specific subscale that assesses perceived effect on the user’s knowledge, attitudes, and intentions to change as well as likelihood of changing the identified targeted behaviors.
The IMS functionality score is based on 7 functionality criteria and 4 functional subcategories as described in detail in the IMS Institute for Healthcare Informatics report [27 ] (Table 1 ). Each app was assessed for having or not having 11 functionalities and given a functionality score (0-11) [27 ].
Two functionality scores were used for this review because the functionality scores provide different types of information on app functionality. The MARS functionality score focuses on performance, ease of use, navigation, and gestural design of the app [26 (link)], whereas the IMS Institute for Healthcare Informatics functionality score focuses on scope of functions, including informing, instructing, recording, displaying, guiding, reminding, and communicating information [27 ].
Each of the apps was also evaluated for whether it included 8 specific self-care behaviors recommended by HFSA guidelines [10 (link)]. These behaviors included daily weighing, checking extremities for swelling, doing physical activity or exercise, eating a low-salt diet, taking daily medications, attending doctor’s appointments, daily monitoring of HF symptoms, and actively responding to symptoms when they change, consistent with HFSA nonpharmacologic guidelines [10 (link)].
The IMS functionality score is based on 7 functionality criteria and 4 functional subcategories as described in detail in the IMS Institute for Healthcare Informatics report [27 ] (
Two functionality scores were used for this review because the functionality scores provide different types of information on app functionality. The MARS functionality score focuses on performance, ease of use, navigation, and gestural design of the app [26 (link)], whereas the IMS Institute for Healthcare Informatics functionality score focuses on scope of functions, including informing, instructing, recording, displaying, guiding, reminding, and communicating information [27 ].
Each of the apps was also evaluated for whether it included 8 specific self-care behaviors recommended by HFSA guidelines [10 (link)]. These behaviors included daily weighing, checking extremities for swelling, doing physical activity or exercise, eating a low-salt diet, taking daily medications, attending doctor’s appointments, daily monitoring of HF symptoms, and actively responding to symptoms when they change, consistent with HFSA nonpharmacologic guidelines [10 (link)].
Full text: Click here