I have used Copy.ai, Hemingway App, Smart Copy, and Wordtune. I majorly use these to create promotional emails, push notifications, and ad copies. I loved Smart Copy for generating long-form content. I entered a few lines as input, and the tool was able to generate a decent long-form copy for an email. It majorly helped in saving time with grunt work. I use Hemingway App to check for readability and sometimes either Word Tune or Copy.AI for short ad copies or email subject lines. Which tool do you folks use?