TECH CRUNCH - One of Twitter's alternatives is Mastodon, a decentralized social network that gained ~70K new sign-ups, the day after the Musk Twitter takeover was completed. Mastodon mobile app saw a record number of downloads as more people fleeing Twitter began to seek out a new online home. It is similar to Twitter but Mastodon is a distributed social network where users sign up on individual servers, or nodes, each with its own theme, rules, language, and moderation policy.