Apologies, yes I am the developer, but that was obvious with my name all over it, and my intent here is only to provide an alternative, there are no advertising on the application and it's free to download, so I'm not providing my post here as self gain in any revenue terms.
As for the rating and review, I guarantee I had nothing to do with that, if that is what you are suggesting, I should imagine, as I have asked friends and family to install to their iPhones, as any of us would do, that it is one of those trying to be helpful, perhaps even kind by providing a review. Again, I had nothing to do with it.
Incidentally, I am currently working on the addition of 329 national trust properties, and welsh heritage properties for an update coming in around 4 weeks. (if all goes well).