FastBill

Smoothbalance is a financial management app for sole traders, limited companies, and their accountant. The app allows users to create and send quotations and invoices and log expenses. Smoothbalance is designed for plumbers, interior decorators, graphic designers, tree surgeons, painters and decorators, tutors, musicians, web developers, programmers, translators, electricians, network engineers, PC technician and anyone who are either self-employed or running a small business. This app is to make sure businesses are never late to send quotations, invoices or record expenses. Smoothbalance is developed to integrate small businesses with their accountant to reduce paperwork by managing invoices and receipts within an app. All small businesses spend a time to manage their invoices and expenses. To arrange paperwork (invoices and receipts) small businesses will either have to arrange that paperwork himself or his/ her accountant/bookkeeper will have to spend a time to manage it.

Facturwise is an invoicing platform for EU freelancers and small businesses with ZUGFeRD and Factur-X e-invoicing compliance built into every plan — including free. Germany mandates e-invoicing from 2027, France from September 2026. Most tools charge extra for compliance or don't support both standards. Facturwise generates fully compliant ZUGFeRD 2.4 and Factur-X 1.0.8 invoices automatically — no plugins, no configuration, no extra cost. Every invoice is a hybrid PDF/A-3 document with structured CII XML embedded inside — human-readable for your client, machine-readable for their accounting software. Beyond compliance: multilingual invoices in 6 languages, 30 currencies, SEPA QR codes for zero-fee bank transfers, automated recurring billing, payment reminders, expense tracking, client management, quotes, credit notes, and a financial dashboard. Start free, no credit card required.