I updated my iPad Pro and iPhone 7 Plus to iOS 11 today and noticed under Settings > Siri & Search > Evernote on the iPad this new “Use With Siri” option. I turned it on, tried a few things, but nothing worked. So I posted on the Evernote forum and DT Low gave me the secret mantra.

Hey Siri   Create a note in Evernote called Testing

Hey Siri    Find a note in Evernote

The first time I tried this on the iPad, Siri told me something like “I’m sorry (Dave, but I can’t do that) – you’ll need to open Evernote to continue.” So I let her do that and that’s where the experiment ended. But I tried again, invoking Siri from the lock screen, and TADA. It worked. Now I can create and search notes using Siri! I can die a happy man.
Except – the “Use With Siri” option doesn’t appear on the iPhone 7 Plus and I don’t know why.

evernote ios 11 use with siri

Update: Doh! To get it working on the iPhone I just had to update the Evernote app!