Table 2.

Participant responses to the evaluation questionnaire about the app.

Question content	Responses
Weeks using app in treatment (weeks)	20.3 (6.3)
How much has dialectical behavior therapy treatment helped (out of 10)a	7.4 (1.6)
How useful was the app was in treatment (out of 10)	7.2 (2.2)
How useful was the app in building an alliance with therapist (out of 10)	7.0 (2.3)
How much the app has been used between sessions (out of 10)	6.9 (2.4)

^aQuestions were rated on a Likert scale ranging from 1 = not helpful at all to 10 = extremely helpful.