Pacifica - Stress and Anxiety | App Store | Google Play
Pacifica aims to help you manage stress, anxiety and depression through psychologist-designed tools for mindfulness meditation, relaxation and mood/health tracking. Free with. See Psyberguide and ADAA reviews.
This app "provides detailed information on the effects of stress on the body and instructions and practice exercises to help users learn the stress management skill called diaphragmatic breathing." Developed by the National Center for Telehealth and Technology. Free. See Psyberguide and ADAA reviews.