[phowson83]

Some excellent points. As you say, what is the difference between a book on CBT (as mentioned in the original post "bibliotherapy" is known to be effective in peer-reviewed studies) and a CBT app? And at what point do you draw the line between these two (assuming the claims made are equal)? I feel this is a question regulators globally are somewhat grappling with currently, and it's clearly going to be an focus going forwards in this space.