LeechBlock is recommended for students, professionals, or anyone who finds themselves frequently distracted by social media, news websites, or other online content. It is particularly useful for those who need a simple solution to improve their focus and time management.
Invoice Ninja - Invoice Ninja is a free, open-source solution for invoicing and billing customers.
Cold Turkey - Cold Turkey is a free productivity program that you can use to temporarily block distractions so that you can get your work done!
Envoice - Send invoices and get paid on Paypal, Payoneer, Stripe and Square.
Time Sink - Time Sink helps you track how you spend your time on your Mac.
InvoiceNeko - An open-source and free invoicing system
Strict Workflow - Enforces the Pomodoro time management technique by blocking distracting sites