It's actually been completely rewritten from the original project. This time it includes NLP for address parsing (this was a huge issue with the first version and didnt work properly internationally). It also includes a Messenger bot integration to avoid the international fees with SMS.
Yeah, I'm playing with the pricing model. As a side project, I'd like it to at least break even. The NLP required for parsing addresses uses quite a bit of memory, so this increases the monthly costs to keep it online. Also, sending a postcard outside of the US costs substantially more than within the US. I wanted to find a good pricing structure that's flat, regardless of where the postcard is going.
There's room to reduce these costs as more people use the service. As long as I'm breaking even on servers I'll be happy :).
Sorry if you answered this somewhere else. But does it use LOB's API to send the postcard?
I wonder if there is data/logic on what would be the optimal locations (countries/cities/towns) where it is cheapest and fastest to send a postcard to that country or neighboring countries.