Picking a title for the App Store page is not easy. Just "Mastodon" is taken by someone - I can't find who or what. So needs more words. "for iOS" is redundant and not permitted. "Decentralized" is so long it doesn't leave any characters for the noun. Besides, I don't want any technical jargon. Any words that a random internet user won't immediately recognize. Twitch has it so easy with its "Twitch: Live Game Streaming". Short and clear.