Hiya John, from a host perspective , I am not really interested in what guests do outside my home, and I don’t mean that in a smart way. I have a folder in their rooms with everything they need to know and also have an online one which guests probably never read as most don’t even read a few rules.
Honestly, I don’t know how many hosts would purchase this, it reduces your profit margin and its a tool that would benefit the guest more.
Everybody carries a phone, do guests want to carry something else ? am not sure. I like the concept of what you have, ,information in one place is great and is beneficial but not sure about the current method of delivery is good. Its not of any real benefit to hosts but definitely would help the guests.
Have you looked to target trial groups in the UK, am in Dublin, and we have a private group for hosts in Ireland on FB, am sure the UK have the same. Go to your target audience and ask them for an honest review from them.