Funnily enough, I was looking at these options yesterday!
This link summarises the ones that seem to be available., though I don’t know why it doesn’t mention Coral Life. I rather liked TouchStay, which I’m trying out.
There is also a free Android app mentioned by a developer from Poland on this forum, which you put on a tablet or old android phone you have lying around and give to the guest. I’m not sure how to reference another thread here, but you could search “New tool to take care of AirBnb guests” as the title. His app is available on Google Play and it looks quite good to me. It’s free for two listings. I think it’s called thehospitalityapp.com