You could region lock, or just put an address like "hello@..." front and center, that's probably enough. Here is Australia, and in the UK where I'm from, WhatsApp is everywhere, but no payments and it's pretty much exclusively personal use. In the US basically no one has WhatsApp.
Makes sense about payments, good to focus on the product. I think saying "free during beta" is fine – it may put some people off because they don't want to rely on something that will go away or start charging later, but it's honest. You could put a target pricing if you want to set expectations for when you do implement payments.
More info in general on the landing page about how it works, or the sorts of results I can expect, would be good. The page does a good job of telling me what's possible, but I know what digital signage is, how does this particular product help me more than other alternatives?
Makes sense about payments, good to focus on the product. I think saying "free during beta" is fine – it may put some people off because they don't want to rely on something that will go away or start charging later, but it's honest. You could put a target pricing if you want to set expectations for when you do implement payments.
More info in general on the landing page about how it works, or the sorts of results I can expect, would be good. The page does a good job of telling me what's possible, but I know what digital signage is, how does this particular product help me more than other alternatives?