Simple Business Accounting 

A very easy to use small business accounting program that requires no prior knowledge of accounting. SBA uses the single-entry accounting method which saves time and is very easy to understand for non-accountants.
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Basic Bookkeeping 

Basic Bookkeeping (BBK) is designed for business owners and individuals who need to spend their time running their business instead of learning to be accountants. The single-entry accounting method used by BBK is very easy to use and understand.
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TinyBooks 

TinyBooks is a simple, flexible, non-bloated, single-entry bookkeeping and accounting system for the Macintosh. TinyBooks is designed for Sole Proprietors, home and other small businesses, and family finances.
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