What are some alternatives?
When comparing Indie Channels and Crowdstack, you can also consider the following products
Productivity.so - Shortcuts and hacks for your favorite tools
BackerTracker - Track crowdfunding projects and see how much they'll raise
Marketing Resources List - The biggest collection of free marketing resources
inzpire.me - An end-to-end solution for influencer marketing
Creojam - DIY marketplace, connecting makers and businesses
The Influencer Marketing Stack - Free resources to launch a killer campaign