Accounting software in Spain that AI assistants recommend
We asked ChatGPT, Claude, Gemini and Grok the four questions a buyer asks when looking for accounting software in Spain, three times each, in Spanish, and counted who they named. These are the businesses named in two or more of the 48 answers.
Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.
- Answers
- 48
- Businesses named
- 15
- Named only once
- 2
- Named by 2+ assistants
- 11 of 13
- Named again on a rerun
- 77%
Edition September 2026. Download the data
Asked for accounting software in Spain, ChatGPT, Claude, Gemini and Grok most often named Holded (100% of answers), Sage 50 (90%) and Anfix (67%). Across 48 answers they named 15 different businesses, 2 of them only once. Each of four buyer questions was asked three times, in Spanish, in September 2026.
The ranking
Share is the fraction of the 48 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.
| # | Business | Share | ChatGPT | Claude | Gemini | Grok | Questions | Avg. position |
|---|---|---|---|---|---|---|---|---|
| 1 | Holded | 95%: 93 to 100% | 100% | 100% | 100% | 100% | 4 of 4 | 1.2 |
| 2 | Sage 50Also written Sage, Sage 50cloud | 95%: 78 to 96% | 100% | 100% | 75% | 83% | 4 of 4 | 2.2 |
| 3 | Anfix | 95%: 53 to 78% | 92% | 75% | 100% | 0% | 4 of 4 | 3.6 |
| 4 | Quipu | 95%: 50 to 77% | 50% | 58% | 100% | 50% | 4 of 4 | 3.4 |
| 5 | Wolters Kluwer a3innuvaAlso written a3innuva Contabilidad, a3innuva, A3innuva Contabilidad, Wolters Kluwer A3, A3, A3innuva | 95%: 27 to 54% | 58% | 58% | 8% | 33% | 3 of 4 | 3.3 |
| 6 | FacturaDirecta | 95%: 13 to 37% | 0% | 8% | 42% | 42% | 2 of 4 | 3.5 |
| 7 | Contasimple | 95%: 13 to 37% | 0% | 8% | 42% | 42% | 3 of 4 | 4.3 |
| 8 | ContasolAlso written ContaSol, ContaSOL | 95%: 7 to 27% | 25% | 25% | 8% | 0% | 1 of 4 | 4.6 |
| 9 | Declarando | 95%: 6 to 25% | 8% | 33% | 8% | 0% | 2 of 4 | 4.5 |
| 10 | Quaderno | 95%: 3 to 20% | 17% | 17% | 0% | 0% | 2 of 4 | 2.3 |
| 11 | Wolters Kluwer | 95%: 2 to 17% | 0% | 0% | 0% | 25% | 3 of 4 | 3 |
| 12 | Debitoor | 95%: 1 to 14% | 8% | 0% | 8% | 0% | 2 of 4 | 4.5 |
| 13 | Odoo | 95%: 1 to 14% | 0% | 17% | 0% | 0% | 1 of 4 | 6 |
Each assistant column is the share of that assistant's 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.
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.
| # | ChatGPT | Claude | Gemini | Grok |
|---|---|---|---|---|
| 1 | Holded100% | Holded100% | Holded100% | Holded100% |
| 2 | Sage 50100% | Sage 50100% | Anfix100% | Sage 5083% |
| 3 | Anfix92% | Anfix75% | Quipu100% | Quipu50% |
| 4 | Wolters Kluwer a3innuva58% | Quipu58% | Sage 5075% | FacturaDirecta42% |
| 5 | Quipu50% | Wolters Kluwer a3innuva58% | FacturaDirecta42% | Contasimple42% |
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.
<a href="https://aigrow.gg/index/accounting-software/spain"><img src="https://aigrow.gg/badges/index/2026-09/accounting-software/spain.svg" width="312" height="100" alt="Named by AI assistants: Accounting software in Spain, AIGROW AI Visibility Index, September 2026"></a>The questions
Asked word for word, three times each, to every assistant through its API, in Spanish. 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¿Cuál es el mejor programa de contabilidad para una pyme en España?What is the best accounting software for a small business in Spain?
- 2¿Qué programa de facturación y contabilidad recomendarías a un autónomo en España?Which invoicing and accounting app would you recommend to a freelancer in Spain?
- 3Estoy montando una pequeña empresa en España. ¿Qué software de contabilidad debería usar?I'm starting a small company in Spain. Which bookkeeping software should I use?
- 4¿Qué programa de contabilidad recomiendan los asesores en España a las pequeñas empresas?Which accounting software do accountants in Spain recommend to small businesses?
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
- 48 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.
Elsewhere in the Index
Is your business on this list?
The free scan asks the same assistants the questions your customers ask, scores whether they name you, and lists who they name instead.
Edition September 2026 · data under CC BY 4.0