Here's a few: https://www.outsystems.com/ http://www.matssoft.com/ http://www.appian.com/

I would highly recommend checking out https://www.dropsource.com/

I just disabled JS and CSS to get the form, and changed the select’s option to value="de">Germany<, and then simply submitted it like that.

I have no idea if it worked, but at least that way it does something. Per default, the form just doesn’t do anything for me.