Easy Rechnung is a B2B invoicing app for freelancers and self-employed professionals. Generate ZUGFeRD/XRechnung e-invoices for your business customers directly on your smartphone — fast, secure and GDPR-compliant.

Easy Rechnung generates E-invoices based on these publicly available standards:
— ZUGFeRD 2.4 (EN 16931) — standard for B2B invoices between companies
— XRechnung format (suitable for B2B, also usable for public authorities)
— PDF/A-3b format

The correctness of the generated invoices is the user's responsibility. This app does not replace tax advice.

WHO IS THE APP FOR?
— Freelancers and self-employed professionals
— Small business owners
— Tradespeople and service providers
— Advisors and consultants
— Anyone who regularly issues invoices to business customers

EASY TO USE
— Create invoices in just a few seconds
— Save seller and buyer data for faster entry
— Automatic invoice number management
— Send instantly by email via your own mail app
— Download as PDF or share via WhatsApp/Google Drive

EXTENSIVE FEATURES
✓ 18 languages (including German, English, French, Dutch)
✓ Multiple tax rates (0%, 7%, 19%, 20%)
✓ Due date and payment terms
✓ Display your own logo
✓ Import customers from CSV file
✓ Notes for the recipient
✓ Detailed item and service lines
✓ Automatic calculation of net and gross amounts
✓ Day and night mode

PRIVACY & SECURITY
— Invoice data is stored locally on your device
— For PDF generation, data is encrypted and transmitted to the server, then deleted immediately after creation
— Tax number and IBAN are used only for PDF generation, then deleted immediately
— Subscription data is managed via Adapty (EU-hosted)
— Temporary PDFs on the server are automatically deleted after 24 hours
— No advertising, no tracking tools
— Backend hosted in the EU (Frankfurt)
— Sending always via your own mail app
— GDPR-compliant

FLEXIBLE SUBSCRIPTION
— 30-day free trial
— Pro subscription: €4.89/month or €29.99/year
— Cancel anytime

TECHNICAL DETAILS
— Works offline
— Fast, responsive operation
— Support for Android 8+
— Regular updates

Start for free now and write your first B2B invoice in under a minute.

BACKGROUND: E-INVOICING OBLIGATION
Since January 2025, companies in Germany must be able to receive and process structured electronic invoices in B2B transactions. The legal basis is the Growth Opportunities Act (§ 14 UStG). More information:
— Federal Ministry of Finance: https://www.bundesfinanzministerium.de
— E-invoicing standard EN 16931: https://www.e-rechnung-bund.de
— ZUGFeRD standard (FeRD): https://www.ferd-net.de
— XRechnung standard: https://xeinkauf.de/xrechnung/

NOTICE: This app is NOT an official product of any authority or government body. Easy Rechnung is provided by an independent developer and is not affiliated with or authorized by the German government, the Federal Ministry of Finance or any other state institution.

DISCLAIMER: This app is an independent product and is not connected to any German authority. All references to legal standards (ZUGFeRD, XRechnung, EN 16931) are for information purposes. The official sources are linked above.

Support & Feedback
Do you have questions or suggestions for improvement? Contact us anytime by email