Sleeve - Your currently playing track displayed right on your desktop
ExportData.io - Export Twitter data for your business needs.
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Followerwonk - Followerwonk by Moz is a Twitter analytics tool to help companies better understand their Twitter followers.
UnitedMasters - Creator tools for artists to get smart, get fans, get paid
FollowersAnalysis - Followersanalysis helps you analyze Twitter followers, export followers list in CSV, compare multiple Twitter accounts and their followers, track followers growth rate, and search Twitter profiles.