Instaberry

This was the app i was looking for. It merges well with my airbnb so I people can direct book with me and I can save on fees. They reply really fast via email. They work out of paris so keep that in mind for reply times.

Amazing customer support from Karan and the App saved me a ton of time with my short term rentals. Highly recommend - start with the free version as you get a lot from it. I eventually upgraded to $15 a month which is still cheaper than most non shopify apps.