Yes - if you have invited your client to Simply.Coach. Invite them now!
A client can share files and notes with their coach through the Shared Space of their Simply.Coach workspace - in the same way that a coach can! All the content you have shared with one another will be stored in this one place and easily accessible - you don't need email.
Whatever coach and client upload to the Shared Space will be visible to both. Shared Space is a space for quick collaboration between the coach & the client and also acts as a single of truth for all shared resources.