Frequently Asked Questions

Answers to common questions about ZUGFeRD, XRechnung, GoBD, and the offline-first desktop app.

What is ZUGFeRD?

ZUGFeRD (Zentraler User Guide des Forums für elektronische Rechnungen Deutschland) is a German standard for electronic invoicing. It allows you to embed invoice data in a machine-readable format within PDF files.

What is XRechnung?

XRechnung is the German standard for electronic invoicing in public procurement. It's based on EN 16931 and used for invoicing to public sector customers in Germany.

What does GoBD compliant mean?

GoBD (Grundsätze zur ordnungsmäßigen Führung und Aufbewahrung von Büchern, Aufzeichnungen und Unterlagen in elektronischer Form sowie zum Datenzugriff) are German guidelines for proper record-keeping and data access.

How does the offline functionality work?

AGYNAMIX Invoicer is designed as an offline-first application. All your data is stored locally on your computer, and you can create invoices without any internet connection. Data only leaves your computer when you explicitly send an invoice.

Is there a subscription fee?

No, AGYNAMIX Invoicer uses a one-time purchase model. You pay once and own the license forever. There are no monthly or annual subscription fees.

Is there a money-back guarantee?

Yes. Every license purchase is covered by a 30-day money-back guarantee, no questions asked. Just contact support within 30 days of purchase and include your order details.

Are updates included?

Yes. After purchase, updates are included for the first year. After that, you can keep using AGYNAMIX Invoicer without limits — but if you want to install further updates, you’ll need an Update Pass.

Which operating systems are supported?

AGYNAMIX Invoicer runs natively on Windows (10/11), macOS (10.15+), and Linux (Ubuntu, Debian, Fedora, openSUSE). There's no web version - it's a desktop application.

Is there a free trial available?

Yes, we offer a free preview version that allows you to test all features. The preview version includes a watermark and limits the number of invoices you can create, but it's fully functional for evaluation purposes.