Table 1.

Smartphone-based case management (SPCM) group smartphone app features.

Feature or button	Description of feature
Call My Care Manager	Clicking this button will automatically call the participant’s assigned case manager. Individual case managers are assigned to all Homeless Recovery Program enrollees, and they are available from 8:00 AM to 5:00 PM Monday to Friday.
Call Crisis Line	Clicking this button will call a representative from a Dallas-based crisis line available 24 hours a day, 7 days a week to help homeless individuals address and overcome crises.
Helpful Websites	Clicking this option will lead to a menu of websites that may be useful to participants (eg, Dallas public transit routes and support group schedules or locations [eg, Narcotics and Alcoholics Anonymous]).
Call Study Staff	Clicking this option will connect participants to study staff if they encounter problems with the study phone or rescheduling missed follow-up appointments.
Payment	This button indicates the amount of incentives that participants have earned for completing ecological momentary assessments to date. These payments will be awarded when each participant presents at the shelter to complete their 1-, 3- and 6-month follow-up assessments.