InvoYX: an offline Square Invoices alternative
The best Square Invoices alternative for German tradespeople is InvoYX — an offline invoicing app with ZUGFeRD 2.2 e-invoices, DATEV export, quotes and dunning. Square Invoices is a payment-linked cloud invoicing tool; InvoYX is the offline, German-market specialist.
The short version
Square Invoices is the right choice for a US merchant who wants invoicing tied to Square payments. InvoYX is the right choice for the German market — ZUGFeRD and DATEV native, fully offline.
Square Invoices vs. InvoYX: how they compare
| Square Invoices | InvoYX | |
|---|---|---|
| Price | Free + payment processing fee | 7-day free trial, then €12.99/month — flat |
| Works offline | No — cloud | Yes — fully offline |
| ZUGFeRD 2.2 / Factur-X | No | Yes — every invoice |
| DATEV export | No | Yes — 42-field CSV |
| Quotes & credit notes | Limited | Yes |
| Dunning | Limited | Yes — 3-stage |
| Languages | English + some | 27 languages |
| Data | Cloud account | On device, no account |
When Square Invoices is the better choice
Square Invoices is the right choice for a US merchant who takes Square payments and wants invoices in the same system.
When InvoYX is the better choice
InvoYX is the right choice for the German market — ZUGFeRD and DATEV native, fully offline, 27 languages, one flat price.
5 reasons to switch
- Native ZUGFeRD e-invoices and DATEV export.
- Fully offline with no account and no cloud.
- Quotes, credit notes, recurring invoices and dunning in one flat price.
- 27 languages with independent document language.
- AES-256 encrypted backup, data stays on your device.
Frequently asked questions
Is InvoYX a Square Invoices replacement?
For the German market — yes, with ZUGFeRD and DATEV that Square doesn't offer, and full offline operation.
Does InvoYX work offline?
Yes — everything runs locally on your device.
Try InvoYX free for 7 days
7-day free trial, then €12.99/month. Cancel anytime. No cloud, no account.
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