This is a feasibility/pilot study to understand participant preferences around data dashboard options, time of day messaging, and styles of messaging in substance use daily diary studies. Participants will fill out a baseline survey followed by 4 brief surveys a day for 21 days on their smart phone. After 21 days they will receive a brief exit survey.

Participants will fill out a baseline survey, followed by 4 brief surveys a day for 21 days, and an exit survey. Survey prompts are sent via text message, and completed 100% online.

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