Pleroma is a powerful server for managing communities in the Fediverse; similar to Mastodon and compatible with its clients, it is lighter weight and also used widely across the Fediverse for small to very large instances. There are a number of web and mobile clients available that can speak with it and be customized in the App Stores as well.

Speaking ActivityPub S2S like Mastodon, the emerging consensus language of the fediverse, it can federate with an array of other systems like BirdSiteLive and PubGate.