Dragon is a Windows powerhouse. It has been the standard for dictation for decades, and it goes further than typing: with voice commands and macros you can open apps, click buttons, and control your whole computer hands-free. It learns your voice and your vocabulary, and specialist editions cover legal and medical work. It is also Windows only, costs $699, and there has been no Mac version since 2018.
AudioPen is built for natural speech on every device. You talk the way you think, with no need to say "comma" or "new paragraph", and it types clean text into any app on Mac, Windows, iPhone, iPad, and Android. It can also write what you said in a style you choose, from a formal email to bullet points, and keeps a notes library you can open in any browser.
If you need to control your entire computer by voice because you cannot use a keyboard or mouse at all, Dragon on Windows is still the stronger tool, alongside the free voice control built into your operating system. If you want to write by voice with far less effort, on a Mac, a phone, or a PC, AudioPen is the better fit.