Have you seen the feeling great app? It's not an official therapy app but it's based in TEAM CBT, made by David Burns and team.

Burns is really into data gathering and his app is LLM based on the rails of the TEAM process and it seems to be very well received.

I found it simple and very well done - and quite effective.

A top level comment says that therapists aren't good either - Burns would argue that mainly no one tests before and after and so no measuring effect is done.

And of people I know who see a therapist, practically none can tell me what exactly they are doing or what methods they are doing or how anything is structured.