Owlead - Grow your Twitter with valuable followers, effortless
Slack Themes - Make your Slack pretty with custom themes
Rainglow Color Themes - 320+ color themes for a variety of editors and software.
Themer - Personalize themes for your terminal/editor/wallpaper/slack
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
eM Client - eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.