Arena

Arena helps you run live online communities. The platform is an AI community engagement tool for publishers, brands and event organizers who want to build an audience, keep it active and earn from it.

AI features cover content creation, interaction and moderation, and monetization comes through ads and revenue sharing.

Arena says it has powered major worldwide events with millions of users, and it names Fox, Microsoft and Sony in its testimonials.

Setup is no-code, so you can add Arena to an existing platform without an engineering project, and you can customize the look to match your brand.

Analytics track key performance indicators.

Support runs 24/7, and the company points to user privacy and GDPR compliance.

There is a free tier for basic engagement.

The catch is that full API access, dedicated private servers and white-labeling sit in higher-tier or Enterprise plans, so larger deployments will not stay free.