What AI assistants actually recommend when buyers ask about open-source hr management software — measured on a rolling 4-week window across 3 engines, published as open data.
Updated 2026-09-17 · 21 sampled answers · rolling 4-week window · methodology
Rankings are measured from sampled AI answers — never editorial, never paid. Orbator builds AI-visibility tooling; when Orbator itself appears in any category, it is measured by the same rules as everyone else.
Measured by Orbatormethodology owner Henrik Tellewindow ends Sep 17, 2026
Sample: 21 AI answers · Window: Aug 20, 2026 – Sep 17, 2026 (4-week rolling) · trend vs prior 4 weeks (73 answers)
Samples by engine: GEMINI 7 (last run Sep 8, 2026) · CHATGPT 7 (last run Sep 8, 2026) · PERPLEXITY 7 (last run Sep 8, 2026) · GROK 0 (last run Aug 18, 2026 — stalest) · CLAUDE 0 (last run Aug 19, 2026)
How these numbers are made: sampling design · prompt provenance · what counts as a mention · what we cannot see
On the record: This ranking is frozen as a dated snapshot every day. View this category's history to see what entered and left the ranking and when, or read what the engines actually said on a given day.
Across 21 sampled AI answers from 3 engines, OrangeHRM is recommended most often — appearing in 90.5% of recommendations, followed by Frappe (61.9%) and ERPNext (57.1%).
This is a measurement of share of voice across 3 AI engines — not an editorial pick. See the full ranking below.
Orbator asked Gemini, ChatGPT and Perplexity buyer questions about open-source hr management software and sampled 21 answers between Aug 20, 2026 and Sep 17, 2026. Recommendation share counts the answers that recommended or listed a product, so a passing mention or a warning adds nothing to it. A category publishes once it holds at least 20 independently sampled answers in the window. Read the full methodology or download this ranking as CSV.
Buyer prompts in this window cluster around self-hosting, on-premise employee data, leave and payroll handling, and budget-constrained nonprofit use. The largest intent is best_in_category with 18 runs, where OrangeHRM led on 83.3%. OrangeHRM also led alternatives at 75% of 8 runs, problem_solving at 100% of 4 runs, and recommendation at 75% of 4 runs. Comparison is thin, with 4 runs and a three-way tie at 25% between Frappe, Horilla and OrangeHRM.
Match the product to the prompt shape. OrangeHRM was recommended in 100% of the 9 runs asking about keeping employee data on-premise. Odoo was recommended in 88.9% of the 9 runs about a mid-size self-hosted HRMS covering leave, payroll and performance reviews.
Published pricing, last verified 2026-09-05: OrangeHRM Starter: Free, Horilla Managed Cloud: $7 a month (free tier available), Odoo Custom: $49 a month (free tier available).
| # | Product | Share | Trend | Engines | |
|---|---|---|---|---|---|
| 1 | orangehrm.com | 90.5% 95% CI 71.1–97.3% 19 mentions · avg pos 2.1 first pick 42.1% | — | GEMINI 85.7%CHATGPT 85.7%PERPLEXITY 100% | Claim |
| 2 | frappe.io | 61.9% 95% CI 40.9–79.2% 13 mentions · avg pos 2.3 first pick 46.2% | — | GEMINI 28.6%CHATGPT 85.7%PERPLEXITY 71.4% | Claim |
| 3 | erpnext.com | 57.1% 95% CI 36.5–75.5% 12 mentions · avg pos 3.6 first pick 41.7% | — | GEMINI 42.9%CHATGPT 71.4%PERPLEXITY 57.1% | Claim |
| 4 | horilla.com | 38.1% 95% CI 20.8–59.1% 8 mentions · avg pos 2.8 first pick 0% | — | CHATGPT 42.9%PERPLEXITY 71.4% | Claim |
| 5 | odoo.com | 38.1% 95% CI 20.8–59.1% 8 mentions · avg pos 4.6 first pick 0% | — | GEMINI 85.7%CHATGPT 14.3%PERPLEXITY 14.3% | Claim |
| 6 | sentrifugo.com | 33.3% 95% CI 17.2–54.6% 7 mentions · avg pos 4 first pick 0% | — | GEMINI 57.1%CHATGPT 14.3%PERPLEXITY 28.6% | Claim |
| 7 | icehrm.com | 19% 95% CI 7.7–40% 4 mentions · avg pos 3 first pick 0% | — | GEMINI 14.3%CHATGPT 14.3%PERPLEXITY 28.6% | Claim |
| 8 | docker.com | 19% 95% CI 7.7–40% 4 mentions · avg pos 5.3 first pick 25% | — | GEMINI 28.6%CHATGPT 14.3%PERPLEXITY 14.3% | Claim |
| 9 | bitrix24.com | 19% 95% CI 7.7–40% 4 mentions · avg pos 5.5 first pick 0% | — | GEMINI 42.9%PERPLEXITY 14.3% | Claim |
| 10 | minthcm.org | 19% 95% CI 7.7–40% 4 mentions · avg pos 6.8 first pick 0% | — | GEMINI 28.6%PERPLEXITY 28.6% | Claim |
| 11 | Odoo HR | 14.3% 95% CI 5–34.6% 3 mentions · avg pos 3.7 first pick 0% | — | GEMINI 42.9% | Claim |
| 12 | OpenHRApp | 14.3% 95% CI 5–34.6% 3 mentions · avg pos 4.3 first pick 33.3% | — | GEMINI 28.6%PERPLEXITY 14.3% | Claim |
| 13 | python.org | 14.3% 95% CI 5–34.6% 3 mentions · avg pos 4.7 first pick 0% | — | GEMINI 14.3%CHATGPT 14.3%PERPLEXITY 14.3% | Claim |
| 14 | POINT | 14.3% 95% CI 5–34.6% 3 mentions · avg pos 5.3 first pick 33.3% | — | GEMINI 14.3%CHATGPT 28.6% | Claim |
| 15 | dolibarr.org | 14.3% 95% CI 5–34.6% 3 mentions · avg pos 5.7 first pick 0% | — | GEMINI 28.6%PERPLEXITY 14.3% | Claim |
| 16 | Jorani | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 2 first pick 50% | — | PERPLEXITY 28.6% | Claim |
| 17 | djangoproject.com | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 3 first pick 0% | — | CHATGPT 14.3%PERPLEXITY 14.3% | Claim |
| 18 | react.dev | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 4.5 first pick 50% | — | GEMINI 28.6% | Claim |
| 19 | nginx.org | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 7.5 first pick 0% | — | GEMINI 14.3%PERPLEXITY 14.3% | Claim |
| 20 | mariadb.org | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 8.5 first pick 0% | — | GEMINI 14.3%PERPLEXITY 14.3% | Claim |
| 21 | mysql.com | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 8.5 first pick 0% | — | GEMINI 14.3%PERPLEXITY 14.3% | Claim |
| 22 | postgresql.org | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 8.5 first pick 0% | — | GEMINI 14.3%PERPLEXITY 14.3% | Claim |
| 23 | Horilla HRMS | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 2 first pick 0% | — | CHATGPT 14.3% | Claim |
| 24 | civicrm.org | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 3 first pick 0% | — | CHATGPT 14.3% | Claim |
| 25 | Frappe Framework | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 3 first pick 0% | — | CHATGPT 14.3% | Claim |
| 26 | Odoo Community | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 4 first pick 0% | — | CHATGPT 14.3% | Claim |
| 27 | Tiny HR | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 4 first pick 0% | — | CHATGPT 14.3% | Claim |
| 28 | ubuntu.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 5 first pick 0% | — | GEMINI 14.3% | Claim |
| 29 | timetrex.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 8 first pick 0% | — | GEMINI 14.3% | Claim |
| 30 | WaypointHR | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 8 first pick 0% | — | GEMINI 14.3% | Claim |
| 31 | wperp.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 9 first pick 0% | — | GEMINI 14.3% | Claim |
| 32 | WP ERP | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 9 first pick 0% | — | GEMINI 14.3% | Claim |
| 33 | ADempiere | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 10 first pick 0% | — | GEMINI 14.3% | Claim |
| 34 | bamboohr.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 11 first pick 0% | — | PERPLEXITY 14.3% | Claim |
| 35 | hibob.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 11 first pick 0% | — | PERPLEXITY 14.3% | Claim |
| 36 | openhrms.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 11 first pick 0% | — | GEMINI 14.3% | Claim |
| 37 | rippling.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 11 first pick 0% | — | PERPLEXITY 14.3% | Claim |
| 38 | Salesforce Power of Us | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 11 first pick 0% | — | GEMINI 14.3% | Claim |
| 39 | Volunteers for Salesforce | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 11 first pick 0% | — | GEMINI 14.3% | Claim |
| 40 | timecounts.org | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 12 first pick 0% | — | GEMINI 14.3% | Claim |
| 41 | OpenVolunteerPlatform | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 14 first pick 0% | — | GEMINI 14.3% | Claim |
| 42 | aws.amazon.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 17 first pick 0% | — | GEMINI 14.3% | Claim |
| 43 | azure.microsoft.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 17 first pick 0% | — | GEMINI 14.3% | Claim |
| 44 | nodejs.org | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 19 first pick 0% | — | GEMINI 14.3% | Claim |
| 45 | SimpleHRM | 4.8% 95% CI 0.8–22.7% 1 mentions first pick 0% | — | PERPLEXITY 14.3% | Claim |
Reading the numbers: Share is a point estimate on 21 sampled answers, so each row also shows its 95% CI — the Wilson score interval around that share. When two products' intervals overlap, the gap between them isn't statistically meaningful at this sample size. First pick is the share of a product's recommending answers where it was named first, which separates “always mentioned” from “usually the top recommendation”. Full methodology.
Independence: Orbator customers are badged for disclosure. Customer status does not affect prompts, sampling, extraction, or ranking — see the methodology. Your product on this list? Claim it to see the prompts behind your rank and track it weekly.
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Head-to-head pages for products ranked in Open-source HR management software. Each one sets out sourced facts side by side, plus which product AI assistants recommend more, engine by engine.
OrangeHRM was recommended in 76.3% of 38 sampled answers in the 4-week window to 2026-09-05, and in 100% of the 9 runs asking for an open-source HR system that keeps employee data on-premise. The breakdown shows 25 recommended runs against 4 listed. Engine spread runs from Grok at 100% of Grok's 2 answers down to Claude at 44.4% of Claude's 9 answers. Starter: Free, last verified 2026-09-05.
Frappe was recommended in 60.5% of 38 sampled answers in the same window, and in 100% of the 9 on-premise runs. 19 recommended runs, 4 listed. ChatGPT recommended it in 88.9% of its 9 answers; Claude in 22.2% of its 9. Grok reached 100% of its 2 answers.
ERPNext sits at 47.4% of 38 sampled answers, with 66.7% of the 9 runs about a mid-size self-hosted HRMS handling leave, payroll and performance reviews. 14 recommended, 4 listed. Highest was Grok at 100% of 2 answers, lowest Perplexity at 22.2% of 9.
Odoo was recommended in 88.9% of the 9 mid-size HRMS runs, with 13 recommended runs and 4 listed. Gemini recommended it in 66.7% of its 9 answers, ChatGPT and Perplexity in 22.2% of their 9 each, Grok in 100% of its 2.
Horilla reached 55.6% of the 9 mid-size HRMS runs, with 12 recommended runs and 2 listed. Perplexity recommended it in 77.8% of its 9 answers, Gemini in 11.1% of its 9. Managed Cloud: $7 a month (free tier available), last verified 2026-09-05.
Four of the five engines shared a leader among the top five. Gemini recommended OrangeHRM most across its 9 answers, as did ChatGPT across its 9, Perplexity across its 9, and Grok across its 2. Claude was the exception, recommending Odoo most among the top five across its 9 answers.
The widest gap belongs to Frappe. Claude recommended it in 22.2% of its 9 answers; Grok recommended it in 100% of its 2 answers, a spread of 77.8 points. Grok's run count is 2, so that end of the range rests on very few answers.
A buyer weighing Frappe or Odoo is weighing a product that one engine treated very differently from the rest. OrangeHRM held above 44.4% on every engine measured.
This is the first measured window on record for open-source HR management software. It covers 2026-08-08 to 2026-09-05, 28 days, with 38 sampled answers across 5 engines. There is no prior window to compare against, so no product entered or left the top ten and no share change can be reported yet.
OrangeHRM leads it now at 76.3% of those 38 answers, with a confidence interval from 60.8 to 87 and 9 first-recommendation runs. Frappe follows at 60.5%, with the highest first-recommendation rate in the top five at 43.5% of its 23 recommended-or-listed runs. ERPNext sits at 47.4%, Odoo at 44.7%, Horilla at 36.8%. Odoo recorded 0 first-recommendation runs. The next window will show whether these positions hold.
Every number on this page is measured from sampled answers, and those answers are kept. The archive holds dated excerpts of what each engine answered, never full answers. Read the answer archive for open-source hr management software to see the excerpts by date and engine, or view the ranking history to see what entered and left this ranking and when.
Across 21 sampled AI answers from 3 engines (Aug 20, 2026 to Sep 17, 2026), OrangeHRM is recommended most often for open-source hr management software, appearing in 90.5% of recommendations, followed by Frappe (61.9%). This is a measurement of what AI assistants recommend, not an editorial verdict.
ChatGPT recommends OrangeHRM most often for open-source hr management software. It appears as a recommendation in 85.7% of ChatGPT's sampled answers in this window (Aug 20, 2026 to Sep 17, 2026). Other engines answer differently. The per-engine breakdown in the ranking shows each one.
Orbator samples AI answers to buyer questions across 3 engines and counts how often each product is recommended. No product pays for placement. The open-source hr management software ranking is based on 21 answers in the current 4-week window (Aug 20, 2026 to Sep 17, 2026). Full methodology is published at https://www.orbator.io/ai-index/methodology.
Verified facts for the most-recommended products — each sourced and dated. No editorial scoring, just the data side by side.
| OrangeHRMorangehrm.com | Horillahorilla.com | Odooodoo.com | ICE HRMicehrm.com | Dockerdocker.com | |
|---|---|---|---|---|---|
| Pricing | Starter: Free ↗ sourceverified Sep 5, 2026 | Managed Cloud: $7 a month (free tier available) ↗ sourceverified Sep 5, 2026 | Custom: $49 a month (free tier available) ↗ sourceverified Sep 5, 2026 | — | Pro: $11 a month, $9 a year (free tier available) ↗ sourceverified Sep 5, 2026 |
| Features | Employee Management ↗ sourceverified Sep 5, 2026 | Payroll & salary processing ↗ sourceverified Sep 5, 2026 | Accounting ↗ sourceverified Sep 5, 2026 | Employee Records ↗ sourceverified Sep 5, 2026 | Docker Desktop ↗ sourceverified Sep 5, 2026 |
| Platforms | API ↗ sourceverified Sep 5, 2026 | Docker ↗ sourceverified Sep 5, 2026 | API ↗ sourceverified Sep 5, 2026 | Android ↗ sourceverified Sep 5, 2026 | Linux ↗ sourceverified Sep 5, 2026 |
| Integrations | Microsoft 365 ↗ sourceverified Sep 5, 2026 | Active Directory ↗ sourceverified Sep 5, 2026 | PayPal ↗ sourceverified Sep 5, 2026 | — | — |
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