Whalebird is described as 'Mastodon client for desktop application' and is a Social Network in the Social & Communications category. There are more than 25 alternatives to Whalebird for a variety of platforms, including Android, iPhone, Self-Hosted solutions, Mastodon and Online / Web-based. The best alternative is Fedilab, which is both free and Open Source. Other great apps like Whalebird are Tusky (Free, Open Source), Amaroq (Free, Open Source), Hyperspace Mastodon client (Free, Open Source) and AndStatus (Free, Open Source).
MouseApp is an android client for the Mastodon social network. You must create 1 or several Mastodon accounts before you can use this app ! The app does not let you register onto a Mastodon instance: it assumes the accounts already exist and are configured.
WHAT'S NEW - Local Timeline - Search Functionality for #hashtags and users - Refreshed Toot Composer - Some UI facelifts - Bugfixes like NSFW warning not scaling properly - Under the hood update to ionic 3