I already have Writesonic, Nichesss and postpace. Each app has their advantage. I like SmartWriter for product title generator, this is really save much time about making title and inside content headline. Because each time generate several tittles are very useful to choice which one is the suitable.

I also need converting subject Lines and catchy Intro Lines, AIDA Framework.
If you need to write Blog, product title and description and write Email, it is really a smart writer for me. Don't hesitate, it is what you need.