Friendica is a very flexible type of server on the Fediverse: it lets you follow Mastodon accounts, other types of Fediverse account, RSS feeds, Twitter etc. There are no specific character limits on posts. It also has additional features such as, calendars, photo albums, groups etc.
It has just received a major update, you can follow the official project news account at @news
More info about Friendica at:
➡️ https://fedi.tips/the-fediverse-beyond-mastodon/#Friendica
