A couple I’ve had recommended but not tried yet, dunno if anyone wants to give them a try

MoodTools - a self-help app targeting depression. It provides psychoeducation about risk factors and psychosocial approaches to treatment, a depression symptom questionnaire (PHQ-9), a thought diary, a suicide safety plan, and videos such as meditation guides.

Breathe2Relax - A simple, intuitive, and attractive mobile app designed by the National Center for Telehealth & Technology to teach breathing techniques to manage stress. The skills taught may be applied to those with anxiety disorders, stress, and PTSD.

This app can be personalized to a pace that the user finds relaxing; includes a video demo, reading materials, and charts to map personal progress. Helpful for self-starters or those working with a therapist to include breathing techniques in their overall treatment.