01Everything so far
3 min read
How to choose an offline invoice app
Seven things to test without signal, the parts that honestly still need a connection, and a free way to inspect the finished PDF.
Invoice KoiInvoicing for the trades
3 min read
Invoice software without an account
What should work before registration, when an account becomes useful, and what to check about privacy, export and recovery.
Invoice KoiInvoicing for the trades
6 min read
The quote template that becomes the invoice
A quote is the document the invoice has to agree with. What carries across when it is accepted, and why converting the same one twice is refused.
Invoice KoiInvoicing for the trades
6 min read
How to invoice as a sole trader
Nine things belong on the document and the rest is presentation. What they are, how to number and date them, and the terms that get the thing paid.
Invoice KoiInvoicing for the trades
7 min read
Free invoice app
A hundred invoices a year, no card and no trial clock. What free covers, what Pro pays for, and why the line falls where the second person does.
Invoice KoiInvoicing for the trades
02 · While you are here
Three free things.