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Janetter - Janetter is a Twitter client application. Faster, smarter, and more powerful.
Refined GitHub - Browser extension that makes GitHub cleaner & more powerful
YoruFukurou - YoruFukurou (NightOwl) is a Twitter client for Mac OS X, designed for Twitter addicts.
GitKraken Glo Boards - Easily track tasks and issues from inside popular dev tools
Talon for Twitter - Elegantly designed, ad-free Twitter experience for Android