Table 4.

Guidelines for Mobile Apps for Advance Care Planning.

Domain	Key to include in mobile app
Features	• Provide a complete description of app “goals” for user (e.g., produce a deliverable, obtain knowledge) • Graphics that are easy to see, sensible for advance care planning content • Consistency in swipes/taps across pages • Consistency in video links across app versions (i.e., iOS, Android) • Saves user information that is entered during the first time the app is used • All content is available on the app (app limits links to websites)
Quality	• Zoomable screen • Large font • Consistency of buttons and swipes throughout app
Content	Knowledge • Provide user with information about app content and capabilities • Provides information about range of individuals who can be a health care proxy (e.g., partner, adult child, close friend) • Provides reasons why a person might be chosen to be a health care proxy (e.g., understands person’s values, wishes) • Definitions of common medical orders (i.e., DNR, DNI, POLST) and care options (i.e., palliative care, hospice care) for individuals with serious illness Contemplation • Encourages thought about choosing a health care proxy • Encourages thought about medical care values and preferences Decision/Action • Permits user to document a decision-maker • Permits user to share documented decisions with care partners, health care providers, and legal representatives
Accessibility	• Eighth grade reading level or lower • Define key terms that may be outside the range of eighth grade reading level • Provide culturally appropriate synonyms for terms that may not otherwise be understood by certain diverse audiences • Offer text-to-speech option • Limit user cost to download and to store or share app information