Part one of this study is to conduct usability testing to understand more about the acceptability and usability of these existing mindfulness apps in a population with depression and anxiety. The goal of usability testing is to identify any usability problems, provide information for future app development, and determine the participant's satisfaction with the apps. Participants will then be randomized to receive either engagement support or no support which will be delivered via text messaging, and will be randomized to use one of the two mindfulness applications for the 4 week period. Specific Aim 2.1 is to evaluate any differences on outcome measures between the two mindfulness apps. Specific Aim 2.2 is to evaluate the differences of outcome measures between text message engagement support versus no support, regardless of the mindfulness app. For Aim 2.1, the investigators predict that all mindfulness apps will be capable of leading to improvements on outcome measures. For Aim 2.2, the investigators predict that the text message engagement support arm will engage more with the mindfulness app and will see greater improvements in outcome measures regardless of the mindfulness app.
