Invoicing software in Germany that AI assistants recommend

Lexware Office is named most, in 100% of 36 answers.

Invoicing software in Germany named by AI assistants, November 2026

  1. 1Lexware Office100%

    95%: 90 to 100%

    ChatGPT
    100%
    Claude
    100%
    Gemini
    100%
    Questions
    4 of 4
    Avg. position
    1.4

    Named in answers to

    • What is the best invoicing software for a small business in Germany?, from ChatGPT, Claude and Gemini
    • I'm a freelance designer in Germany and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from ChatGPT, Claude and Gemini
    • Which invoicing app would you recommend to a small company in Germany?, from ChatGPT, Claude and Gemini
    • Which invoicing software is the most affordable for a freelancer in Germany?, from ChatGPT, Claude and Gemini

    Also written Lexoffice, lexoffice

    Is this your business?
  2. 2sevDesk100%

    95%: 90 to 100%

    ChatGPT
    100%
    Claude
    100%
    Gemini
    100%
    Questions
    4 of 4
    Avg. position
    1.8

    Named in answers to

    • What is the best invoicing software for a small business in Germany?, from ChatGPT, Claude and Gemini
    • I'm a freelance designer in Germany and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from ChatGPT, Claude and Gemini
    • Which invoicing app would you recommend to a small company in Germany?, from ChatGPT, Claude and Gemini
    • Which invoicing software is the most affordable for a freelancer in Germany?, from ChatGPT, Claude and Gemini

    Also written sevdesk, SevDesk, Sevdesk

    Is this your business?
  3. 3Billomat53%

    95%: 37 to 68%

    ChatGPT
    8%
    Claude
    92%
    Gemini
    58%
    Questions
    4 of 4
    Avg. position
    4

    Named in answers to

    • What is the best invoicing software for a small business in Germany?, from Claude and Gemini
    • I'm a freelance designer in Germany and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from ChatGPT and Claude
    • Which invoicing app would you recommend to a small company in Germany?, from Claude and Gemini
    • Which invoicing software is the most affordable for a freelancer in Germany?, from Claude and Gemini
    Is this your business?
  4. 4FastBill42%

    95%: 27 to 58%

    ChatGPT
    8%
    Claude
    100%
    Gemini
    17%
    Questions
    4 of 4
    Avg. position
    3.1

    Named in answers to

    • What is the best invoicing software for a small business in Germany?, from ChatGPT and Claude
    • I'm a freelance designer in Germany and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from Claude and Gemini
    • Which invoicing app would you recommend to a small company in Germany?, from Claude
    • Which invoicing software is the most affordable for a freelancer in Germany?, from Claude
    Is this your business?
  5. 5easybill36%

    95%: 23 to 52%

    ChatGPT
    83%
    Claude
    25%
    Gemini
    0%
    Questions
    4 of 4
    Avg. position
    3.2

    Named in answers to

    • What is the best invoicing software for a small business in Germany?, from ChatGPT and Claude
    • I'm a freelance designer in Germany and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from ChatGPT
    • Which invoicing app would you recommend to a small company in Germany?, from ChatGPT
    • Which invoicing software is the most affordable for a freelancer in Germany?, from ChatGPT

    Also written Easybill

    Is this your business?
  6. 6Debitoor33%

    95%: 20 to 50%

    ChatGPT
    0%
    Claude
    100%
    Gemini
    0%
    Questions
    4 of 4
    Avg. position
    4.3

    Named in answers to

    • What is the best invoicing software for a small business in Germany?, from Claude
    • I'm a freelance designer in Germany and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from Claude
    • Which invoicing app would you recommend to a small company in Germany?, from Claude
    • Which invoicing software is the most affordable for a freelancer in Germany?, from Claude
    Is this your business?
  7. 7Papierkram11%

    95%: 4 to 25%

    ChatGPT
    33%
    Claude
    0%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    4

    Named in answers to

    • I'm a freelance designer in Germany and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from ChatGPT
    • Which invoicing software is the most affordable for a freelancer in Germany?, from ChatGPT

    Also written papierkram

    Is this your business?
  8. 8Sorted8%

    95%: 3 to 22%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    25%
    Questions
    2 of 4
    Avg. position
    3

    Named in answers to

    • I'm a freelance designer in Germany and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?, from Gemini
    • Which invoicing software is the most affordable for a freelancer in Germany?, from Gemini
    Is this your business?
  9. 9WISO MeinBüro8%

    95%: 3 to 22%

    ChatGPT
    25%
    Claude
    0%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    3.7

    Named in answers to

    • What is the best invoicing software for a small business in Germany?, from ChatGPT
    • Which invoicing app would you recommend to a small company in Germany?, from ChatGPT
    Is this your business?
  10. 10Zervant8%

    95%: 3 to 22%

    ChatGPT
    8%
    Claude
    17%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    5

    Named in answers to

    • What is the best invoicing software for a small business in Germany?, from ChatGPT
    • Which invoicing software is the most affordable for a freelancer in Germany?, from Claude
    Is this your business?

Open a row to see each assistant's share of its own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 2 more names came up in a single answer and are counted above but not listed.

Invoicing software in Germany: is this your field?

12different names in 36 answers, 2 of them only once. The assistants change their minds from one answer to the next.

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How the AIGROW Score is measured

No business can pay to appear in the Index, rise in it or be removed from it. How the Index stays neutral

AI Visibility Index · November 2026

Asked about invoicing software in Germany, ChatGPT, Claude and Gemini named Lexware Office most often, in 100% of answers (its AI Recommendation Rate), then sevDesk (100%) and Billomat (53%). Across 36 answers they named 12 different businesses, 2 of them only once. Each of four buyer questions was asked three times, in German, in November 2026.

The AI Recommendation Rate is the fraction of the 36 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.

Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.

Invoicing software · Germany

100% of answers named Lexware Office

Answers
36
Businesses named
12
Named only once
2
Named by 2+ assistants
6 of 10
Named again on a rerun
86%

Edition November 2026. Download the data

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What each assistant said

The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.

#ChatGPTClaudeGemini
1Lexware Office100%Lexware Office100%Lexware Office100%
2sevDesk100%sevDesk100%sevDesk100%
3easybill83%FastBill100%Billomat58%
4Papierkram33%Debitoor100%Sorted25%
5WISO MeinBüro25%Billomat92%FastBill17%

Questions about invoicing software in Germany

ChatGPT, Claude and Gemini named Lexware Office most often, in 100% of 36 answers, then sevDesk (100%) and Billomat (53%). The names come from what the assistants answered to four buyer questions in November 2026; we have not checked that any of them is good, open or real.

On the first name, yes: each of them named Lexware Office most often. 6 of the 10 listed businesses were named by two or more of them.

Each question was asked three times. Of the names an assistant gave for a question, 86% came back in two or more of those runs; the rest came up once. The 95% range beside each rate in the ranking shows how far it could move by chance.

Run the free checker: it asks ChatGPT, Claude, Gemini and Grok two of the Index questions for invoicing software, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up. The page on how AI assistants recommend invoicing software shows what an owner can work on. Nothing can guarantee that an assistant names you.

Named here? Put it on your site

Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.

Named by AI assistants: Invoicing software in Germany, AIGROW AI Visibility Index, November 2026
<a href="https://aigrow.gg/index/invoicing-software/germany"><img src="https://aigrow.gg/badges/index/2026-11/invoicing-software/germany.svg" width="312" height="100" alt="Named by AI assistants: Invoicing software in Germany, AIGROW AI Visibility Index, November 2026"></a>

The questions

Asked word for word, three times each, to every assistant, in German. The English under each is our translation. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.

  1. 1Was ist die beste Rechnungssoftware für ein kleines Unternehmen in Deutschland?What is the best invoicing software for a small business in Germany?
  2. 2Ich bin freiberuflicher Designer in Deutschland und schreibe meine Rechnungen noch in einer Tabelle. Welches Rechnungsprogramm würdest du empfehlen?I'm a freelance designer in Germany and still make my invoices in a spreadsheet. Which invoicing tool would you recommend?
  3. 3Welches Programm zum Schreiben von Rechnungen würdest du einem kleinen Betrieb in Deutschland empfehlen?Which invoicing app would you recommend to a small company in Germany?
  4. 4Welche Rechnungssoftware ist für Freiberufler in Deutschland am günstigsten?Which invoicing software is the most affordable for a freelancer in Germany?

How to read this page

What it measures
Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
Why the ranges matter
36 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
One business, several spellings
Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
A name is wrong
If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.

AI Visibility Index

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Edition November 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0