Draftium is a turbo prototyping tool which help you to build a website structure in a few minutes with ready-made blocks.

@TomaszBanas so, sorry, Tomasz for inconveniences. Now, we’ve fixed everything and Coupon works. You can try to apply it ;)
@draftium I'm in, just purchased the PRO. Questions:

1. Are you working on the speed improvement?
2. How to invite guests so we can collaborate?
3. How to export prototypes?
4. Is there a public roadmap / feature request? I hope there is something great like Canny platform that's easy for users to communicate bugs and needs.

Looking forward to hearing from you.