TweetDeck - TweetDeck is your personal browser for staying in touch with what’s happening now.
Whalebird - Whalebird is a Mastodon client for desktop application.
Tweetbot - Sync your timeline across your iPhone, iPad, and Mac. Mute tweets by user, hashtag, tweet source, or keywords (including regex). 3rd Party support for image, video, read later, and timeline sync services.
Hyperspace Mastodon client - Hyperspace offers a clean, fast and responsive client for the Mastodon social network
TweetCaster - TweetCaster is a third-party Twitter mobile app that is available on Google Play and the Apple App Store.
Moshidon - Better modification of the official Mastodon for Android app