Facebook, InterPals, Gab, Mastodon, Pawoo, Y99, Minds, Diaspora, Youllo, Plerb, Friendica, Tweet It!, SpacePals, Swarmr, Sharfly.com, Pleroma, swap-bot, GNU social, Misskey, Noiys, BroadTags, Bitnation, WrongThink, Screech, Tweet Tray, Fenice, Tokumei, Binky, Twodio, timedrop, BabyTwit, FirstFate Social App, Sphere Social, Weblum, qmpeople, Twidge, Swervel, ChatJet, Invitime, Reax, Model Unity, DumDarac are some alternatives to PenPal World.