Table 1.

Identified functionalities in the app of the IOS and Android app store [15].

Functionality	Explanation
Medication tracking history	Ability to record and track taken and missed doses.
Snooze option	Ability to snooze the reminder for a predetermined period of time, for example, 15 minutes.
Flexible scheduling	Ability to schedule reminders to occur on a non-daily or monthly basis or every X days, or ability to schedule medications with stop dates.
Medication database	Availability of a medication database that allows the user to search and select a medication from the database.
Refill reminders	Ability to set reminders to the date when medication needs to be refilled.
Reminders with no connectivity	No Internet connection required for the reminders to function.
Data exporting and sharing	Ability to export and share the medication information to a third party, for example, family member or healthcare provider.
Multiple users support	Ability to generate medication reminders on different medications for more than one user, for example, family members.
Notification for other people	Availability of an option to alert other people about when to take their medication or when missed doses are registered.
Data security	The app developer ensures data security
Data privacy: password protection	Password option to access the app.
Multilingual	Availability of languages other than English.
Time zone support	Ability to change time zones to ensure medication is taken at the right time when traveling.
Adherence rewards	Availability of a feature that rewards the patient when the medication is taken on schedule, for example, awarding points for each medication taken that could be redeemed into vouchers.
Adherence statistics and charts	Availability of statistics and charts describing medication usage trends and adherence rates.
Customizable alert sounds	Availability of different types of notification sounds.
Visual aids	Availability of icons (e.g., tablet, syringe, drops) or ability to add a picture to provide visual clues (e.g., to ensure correct medication is taken)