A quick look at popular proprietary accounting software based on niche

Zoho Books: Proprietary accounting software with a free plan – handy for freelancers/startups constrained by budget.

QuickBooks: Paid accounting software that we recommend for small and medium businesses selling products (with inventory solution).

FreshBooks: Proprietary accounting software that we recommend to freelancers, startups, digital businesses.

Katana Manufacturing ERP: Made for manufacturing businesses.