AI assistants most often recommend Lexoffice for invoicing software in 🇩🇪 Germany (Deutsch), naming it in 50% of the buyer questions we tested, followed by Billomat and Wave. We asked an AI model the questions buyers ask about invoicing software and tallied which brands it named most — "share of voice" in AI answers, who AI recommends when no human is watching.
| # | Brand | AI share of voice |
|---|---|---|
| 1 | Lexoffice | 3/6 (50%) |
| 2 | Billomat | 3/6 (50%) |
| 3 | Wave | 3/6 (50%) |
| 4 | Debitoor | 2/6 (33%) |
| 5 | sevDesk | 2/6 (33%) |
| 6 | Zoho Books | 2/6 (33%) |
| 7 | Lexware | 2/6 (33%) |
| 8 | Datev | 2/6 (33%) |
| 9 | FreshBooks | 1/6 (17%) |
| 10 | Sage | 1/6 (17%) |
| 11 | Billexco | 1/6 (17%) |
Method: 6 representative buyer questions via a large language model, 🇩🇪 Germany (Deutsch). Updated 10/7/2026. A proxy for how AI assistants describe this category.
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