I saw this discussion on Reddit. I'd never heard of Seed & Spark but it seems to be a very good alternative to Kickstarter & Indiegogo. Someone that seems to be an entertainment attorney gives the reasons he prefers it.
This might be useful for people here.
https://www.reddit.com/r/Filmmakers/comments/7dtpjk/crowdfunding_discussion/
This might be useful for people here.
https://www.reddit.com/r/Filmmakers/comments/7dtpjk/crowdfunding_discussion/