Have a website version.
Have a non-app. website list.
greg dove shared this idea
We’ve added this to our long-term roadmap, thanks for the idea!
Add a web platform for item entry.
you could also add the ability to share templates
I second this one. I'm hoping this can come shorter-term. I want to be able to make my list on my computer and have it sync with my phone app. I have custom lists that would be SO much easier to type using my keyboard. ;)