Narrowmark tests invoicing software in a real tradesperson’s van

Why it surfaced

Narrowmark rejects generic affiliate rankings in favor of a defined test surface: real jobs, roughly fifteen invoices a week, a named reviewer, and quarterly re-testing. Its first plumbing comparison even records the trade-offs in concrete terms, from photo-to-job receipts to missing payroll support.

A ranked comparison site for UK sole-trader tradespeople, beginning with invoicing software tested by a working plumber.