Numbers is described as 'Create gorgeous spreadsheets with Numbers for Mac. Get started with one of many Apple-designed templates for your home budget, checklist, invoice, mortgage calculator, and more' and is a popular app in the Office & Productivity category. There are more than 50 alternatives to Numbers for a variety of platforms, including Windows, Mac, the Web, Linux and Android. The best alternative is LibreOffice - Calc, which is both free and Open Source. Other great apps like Numbers are Microsoft Office Excel (Paid), Google Drive - Sheets (Free), You Need A Budget (Paid) and Gnumeric (Free, Open Source).