Spicetify - Command line tool to customize Spotify client
Invoice Ninja - Invoice Ninja is a free, open-source solution for invoicing and billing customers.
Blackpills - Netflix for short series
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Flipboard - Your Personal Magazine. Find, follow and flip stories that change your world.
GnuCash - A personal and small-business financial-accounting software, licensed under GNU/GPL and available for Linux, Windows, Mac OS X, BSD, and Solaris.