The group found that Mastodon — an app described as "social networking that's not for sale" by its website — is steadily growing by approximately 1.5 million new users per month. Since Musk's takeover, Mastodon account names have been added to the Twitter bios of more than 90,000 users and mentioned by users nearly 200,000 times in the last 30 days, as per Dewey Digital. https://www.businessinsider.com/twitter-migration-shows-no-signs-of-slowing-following-musks-takeover