A journalling app could give users a private space while allowing them to share selected entries with a coach. Private writing should stay private unless the user deliberately chooses a clearly explained sharing option.
The coaching service needs defined response expectations and boundaries. Users should understand who can access shared entries and how to withdraw future access. Notifications must avoid exposing journal content on shared devices or lock screens.
Pilot a simple journal and selective-sharing workflow. Test an entry edited after sharing and a coaching relationship ending. The app should explain that it is not continuously monitored or an emergency response service. Its purpose is to support an agreed wellbeing activity, without inventing clinical benefits or interpreting entries as a diagnosis.
Related reading: Mobile App Accessibility: Make Your App Easier to Use.