Table 4.

User features offered by apps.

User feature	Description of feature	Number of free apps with user feature
Track other health metrics	Such as blood pressure	67
Pharmacy information	Information relating to nearby pharmacies, such as contact information or location	52
Important contacts	Can input information relating to pharmacist, doctor, or emergency contact in the app	34
Refill reminder	An alarm or reminder relating to when the user requires refilling of their medication	31
Photo of medication	Add a picture of the medication or select image from existing gallery to place next to medication on app	30
Export information from app	Can email or send information on medication or adherence record to another person, such as a health care provider	24
Appointment reminder	Reminds you of medical appointments	19
Record medical history	Can act as an electronic medical record by inputting medical history	17
Hospital information	Information relating to nearest hospital, contact information, and location	8
Barcode scanner	Scans barcode and automatically inputs medication according to the barcode	6
Work with wearables	Compatibility with wearable technology	5