Comment by oddlyaromatic

Not an app, but I have used ifttt recipes for this in the past, where I call the number and leave a message, then receive an email with transcription and link to audio in case the transcription was bad. Then I was automatically tagging those emails in Gmail to be able to go through my notes. The IFTTT number was saved in my contacts with an easily pronounced word. So when driving I could tell Siri "call Bender" and then not have to worry about any launch/navigation etc, just start talking