# Online invoicing tools compared

> Only a few invoices a month? An online invoicing tool is often enough. When WorkOrderAgent pays off: orders, receipts and appointments in one customer file.

Source: https://1x1it.de/en/vergleich/online-faktura/

With fewer than five invoices a month and no need for ERP, DMS, shop or customer portal, an online invoicing tool is often sufficient. As soon as orders, receipts, appointments and timesheets come together for the same customer, WorkOrderAgent plays to its strengths.

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Online invoicing Category 2

- **Focus:** invoices, simple bookkeeping
- **Entry price:** often low
- **Modules:** many only at extra cost
- **Interface:** modern, works well on mobile
- **Commitment:** monthly

## How you can tell you need more

Online invoicing tools focus on writing invoices. That is their strength and also their limit.

- The customer file is scattered: Orders, receipts, appointments and timesheets sit in different tools. You jump between several logins to see what is going on with a customer.
- Modules are missing or cost extra: Many online invoicing tools offer no DMS, text recognition, online shop, customer portal, VPN tunnel or open CalDAV interface at all.
- Interfaces need maintaining: If you combine tools from three to five providers, you maintain their interfaces, logins and invoices yourself.
- One file in WorkOrderAgent: Quotes, orders, invoices, receipts in the DMS, appointments, timesheets and incoming payments belong to the same customer record. One look is enough.

## Online invoicing and WorkOrderAgent at a glance

The differences lie less in the invoice itself than in everything that happens before and after it.

Features of online invoicing tools compared with 1x1-WorkOrderAgent

| Feature | Online invoicing tool | 1x1-WorkOrderAgent |
| Order management | yes | yes |
| Cloud hosting in Germany | partly | yes |
| XRechnung and ZUGFeRD e-invoices | partly | yes |
| DATEV CSV export | partly | yes |
| Integrated advance VAT return | partly | yes |
| All modules from one provider | mostly not | yes |
| DMS with text recognition and full-text search | mostly not | yes |
| Timesheets with multiple timers | mostly not | yes |
| Customer portal with digital signature | mostly not | yes |
| Online shop | mostly not | yes |

The information describes typical tools in this category, as of June 2026. Individual providers differ. Please check each case individually.

## Related

[Order management Quote, order and invoice in one process](https://1x1it.de/en/workorderagent/auftragsverwaltung/)
[Industry software When your industry needs very deep logic](https://1x1it.de/en/vergleich/branchen-software/)
[Tax adviser platforms When your tax adviser sets the tool](https://1x1it.de/en/vergleich/steuerberater-plattform/)
[Comparison All five provider categories](https://1x1it.de/en/vergleich/)

## More than writing invoices?

Try WorkOrderAgent free for 20 days, then from €49.95 a month incl. VAT. Or we show you the software using your own workflows.

[0173 644 22 17](tel:+491736442217)

[Request a demo](https://1x1it.de/en/kontakt/#anfrage)