Crowdstack is described as 'Hosted community and membership platform designed to help engage, retain and grow your audience. Crowdstack site owners have complete control of their data' and is a Social Network in the office & productivity category. There are three alternatives to Crowdstack for Web-based, Android, iPhone and SaaS. The best Crowdstack alternative is Instaforum. It's not free, so if you're looking for a free alternative, you could try Tribe Community Platform.
With Instaforum, you can build a forum website that's as simple and usable as a modern messaging app. It can be public or private, and users don't have to install anything. It's easy to set up, runs on your domain with your branding, and you control your data.
Create communities organized in groups with shared content, member-generated posts, private messaging, customizable branding, event and discussion features, content libraries, activity notifications, virtual or in-person meetups, and scalable network structures.
Tribe is a white-label platform, empowering the new generation of online communities. It boosts users engagement and growth through widgets and integrations to existing stacks.
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