Listr - Listr lets you explore some of the best lists on Twitter, curated across your favorite categories.
Typefully - Write & publish great tweets, without distractions
Vicariously.io - Create Twitter lists based on the follows of other users
Tweet Tray - Tweet quickly from your desktop without any distractions.
Blindfold - Make your life on Twitter more positive
Minimal Twitter - A distraction-free browsing experience for the new Twitter