Thanks for the questions.

1-Yes we're using Stripe and a good chunk of our current customer base is international.

2-This is a tough one for a start-up, and it's certainly a question we've gotten before. If we were to promise to open source the software if we ever shut down the service would that be sufficient? It's not a promise we have made yet, but I think it's something we could commit to.

3-Great idea! No, but this is something we should build out. I'm adding it to our dev backlog.