Hypegrowth - Hypegrowth is a personal Twitter assistant that allows to grow Twitter audience.
Flamingo for Twitter - Flamingo for Twitter is a bright and colorful Twitter client that comes with a simple interface.
Jooicer - Superpowers to boost your Twitter Growth
Twicca - Twicca is a Twitter client for Android that is simply awesome. Features: * Notification
Toolset.co - Twitter growth made easy, a bunch of tools to easily manage and grow your Twitter account.
Plume - App for writing documents, scripts, books and more.