What AI apps are you using?

What AI apps are you all using. I am planning on testing e few of them in the next couple of weeks. Things that I am looking for: - Automatic code generation for simple web programs (HTML, JS and PHP) - I want to be able to upload a PDF document and discus the content with the AI. These are complex technical standards with a lot of formulas and tables in it. - Automate email marketing -> automatically search leads on linkedIn and prepare/send personalised emails Any other apps that you think are useful are also welcome. Thanks.