Tweetmill is described as 'fast, simple, and native Twitter client for Windows. It's designed with the Fluent design language in mind and is completely ad-free. Tweetmill features support for lists, saved searches, trends, multiple accounts, multiple columns, GIF search, and a lot more'. There are eight alternatives to Tweetmill for a variety of platforms, including iPhone, iPad, Android Tablet, Mac and Online / Web-based. The best alternative is Twitter, which is free. Other great apps like Tweetmill are TweetDeck (Free), Tweetbot (Paid), Echofon for Twitter (Freemium) and Fenix for Twitter (Paid).