Table 1.

Examples of ways to deliver behavior change techniques through a smartphone app

Prompt self-monitoring of behavior

Facilitate diet, activity, and weight tracking

Utilize camera to take images of foods or scan barcodes

Passively track physical activity using accelerometer or fitness monitor

Send text message/push notification reminder to self-monitor

Prompt specific goal setting

Set specific calorie and fat gram intake, physical activity, and weight goals

Prompt review of behavioral goals

Provide visual graphics, tables, and charts

Provide feedback on performance

Personalized real-time feedback on behaviors actively or passively monitored

Incorporation of GPS to generate location specific recommendations

Provide general encouragement

Support from coach via coaching interface

Send personalized encouragement via text messages/push notifications

Plan social support or social change

Connect with social media outlets and networks

Provide opportunities for social comparison

Create challenges and competitions within social network

Provide contingent rewards

Provide rewards or incentives based on goal attainment and adherence

Abbreviations: App, application; GPS, global positioning system.