What AI assistants actually recommend when buyers ask about open-source time tracking 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 (98 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, Kimai is recommended most often — appearing in 95.2% of recommendations, followed by Solidtime (85.7%) and ActivityWatch (38.1%).
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 time tracking 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 category split between self-hosting for one person and self-hosting for a team that bills clients. Kimai led every measured intent: best_in_category at 100% of 18 runs, recommendation at 83.3% of 18 runs, alternatives at 100% of 9 runs, comparison at 100% of 9 runs, and problem_solving at 100% of 9 runs. Solidtime ran second in best_in_category at 94.4% of those 18 runs and tied ActivityWatch at 88.9% in the alternatives intent of 9 runs. Docker appeared second in problem_solving at 88.9% of 9 runs, the intent covering integration with project management and invoicing.
Where a shortlist starts from a narrow question, check the over-indexed prompts. Solidtime and Docker both hit 100% on the freelancer self-hosting prompt across 9 runs. Docker lists Pro: $11 a month, $9 a year (free tier available), last verified 2026-09-05.
| # | Product | Share | Trend | Engines | |
|---|---|---|---|---|---|
| 1 | kimai.org | 95.2% 95% CI 77.3–99.2% 20 mentions · avg pos 2.3 first pick 65% | — | GEMINI 100%CHATGPT 85.7%PERPLEXITY 100% | Claim |
| 2 | solidtime.io | 85.7% 95% CI 65.4–95% 18 mentions · avg pos 3.9 first pick 11.1% | — | GEMINI 100%CHATGPT 71.4%PERPLEXITY 85.7% | Claim |
| 3 | activitywatch.net | 38.1% 95% CI 20.8–59.1% 8 mentions · avg pos 3.1 first pick 12.5% | — | GEMINI 42.9%CHATGPT 28.6%PERPLEXITY 42.9% | Claim |
| 4 | traggo.net | 38.1% 95% CI 20.8–59.1% 8 mentions · avg pos 6.1 first pick 0% | — | GEMINI 14.3%CHATGPT 71.4%PERPLEXITY 28.6% | Claim |
| 5 | docker.com | 28.6% 95% CI 13.8–50% 6 mentions · avg pos 4 first pick 16.7% | — | GEMINI 28.6%CHATGPT 28.6%PERPLEXITY 28.6% | Claim |
| 6 | openproject.org | 28.6% 95% CI 13.8–50% 6 mentions · avg pos 9.8 first pick 0% | — | GEMINI 42.9%PERPLEXITY 42.9% | Claim |
| 7 | timetagger.app | 23.8% 95% CI 10.6–45.1% 5 mentions · avg pos 3.6 first pick 0% | — | CHATGPT 14.3%PERPLEXITY 57.1% | Claim |
| 8 | super-productivity.com | 23.8% 95% CI 10.6–45.1% 5 mentions · avg pos 8.2 first pick 20% | — | GEMINI 42.9%PERPLEXITY 28.6% | Claim |
| 9 | TimeTracker | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 3.5 first pick 0% | — | GEMINI 14.3%PERPLEXITY 14.3% | Claim |
| 10 | TimeWarrior | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 6 first pick 0% | — | GEMINI 14.3%PERPLEXITY 14.3% | Claim |
| 11 | Wakapi | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 6 first pick 0% | — | GEMINI 14.3%PERPLEXITY 14.3% | Claim |
| 12 | wakatime.com | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 6.5 first pick 0% | — | GEMINI 28.6% | Claim |
| 13 | timecamp.com | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 11.5 first pick 0% | — | GEMINI 28.6% | Claim |
| 14 | postgresql.org | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 18.5 first pick 0% | — | GEMINI 14.3%PERPLEXITY 14.3% | Claim |
| 15 | nginx.org | 9.5% 95% CI 2.7–28.9% 2 mentions · avg pos 19 first pick 0% | — | GEMINI 14.3%PERPLEXITY 14.3% | Claim |
| 16 | clockify.me | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 2 first pick 0% | — | CHATGPT 14.3% | Claim |
| 17 | odoo.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 2 first pick 0% | — | CHATGPT 14.3% | Claim |
| 18 | toggl.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 2 first pick 0% | — | CHATGPT 14.3% | Claim |
| 19 | rescuetime.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 4 first pick 0% | — | CHATGPT 14.3% | Claim |
| 20 | Timestrap | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 4 first pick 0% | — | PERPLEXITY 14.3% | Claim |
| 21 | invoiceninja.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 5 first pick 0% | — | GEMINI 14.3% | Claim |
| 22 | pacifictimesheet.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 6 first pick 0% | — | GEMINI 14.3% | Claim |
| 23 | TimeCase | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 8 first pick 0% | — | GEMINI 14.3% | Claim |
| 24 | memtime.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 9 first pick 0% | — | GEMINI 14.3% | Claim |
| 25 | Anuko | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 19 first pick 0% | — | GEMINI 14.3% | Claim |
| 26 | php.net | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 19 first pick 0% | — | GEMINI 14.3% | Claim |
| 27 | quickbooks.intuit.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 19 first pick 0% | — | GEMINI 14.3% | Claim |
| 28 | asana.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 21 first pick 0% | — | GEMINI 14.3% | Claim |
| 29 | Jira | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 21 first pick 0% | — | GEMINI 14.3% | Claim |
| 30 | trello.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 21 first pick 0% | — | GEMINI 14.3% | Claim |
| 31 | myhours.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 22 first pick 0% | — | GEMINI 14.3% | Claim |
| 32 | mysql.com | 4.8% 95% CI 0.8–22.7% 1 mentions · avg pos 26 first pick 0% | — | GEMINI 14.3% | Claim |
| 33 | raspberrypi.com | 4.8% 95% CI 0.8–22.7% 1 mentions first pick 0% | — | CHATGPT 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 time tracking software. Each one sets out sourced facts side by side, plus which product AI assistants recommend more, engine by engine.
Kimai was recommended in 95.2% of 63 sampled answers in the 4-week window to 2026-09-05, and it was mentioned in every run at a mention rate of 100. The breakdown splits into 54 recommended, 6 listed, 2 context and 1 warned against. Engine spread ran from 100% of Claude's 14 answers, ChatGPT's 14 and Perplexity's 14 down to 85.7% of Gemini's 14 answers and 85.7% of Grok's 7. It was first recommendation in 28 runs, a first_rec_rate of 46.7.
Solidtime over-indexed on the prompt about the best open-source time tracking tool for a freelancer who wants to self-host their data, recommended in 100% of those 9 runs. Overall it was recommended in 82.5% of 63 answers, with 42 recommended against 10 listed and 6 context. Claude, Grok and Perplexity all sat at 85.7%, on 14, 7 and 14 runs; Gemini and ChatGPT both at 78.6% of 14 answers.
Docker also topped the freelancer self-hosting prompt at 100% of 9 runs, and was recommended in 55.6% of 63 answers overall, with 19 recommended and 16 listed. Grok recommended it in 100% of its 7 answers, Perplexity in 35.7% of 14. Pricing is listed as Pro: $11 a month, $9 a year (free tier available), last verified 2026-09-05.
ActivityWatch over-indexed on the developers versus team leads comparison prompt, recommended in 100% of 9 runs, with 17 recommended and 9 listed across the window. Grok reached 85.7% of 7 answers; Claude and ChatGPT both 28.6% of 14. Narrow fit outside that comparison question.
Traggo led on open-source alternatives to cloud-hosted employee time logging tools, at 88.9% of 9 runs, with 16 recommended and 8 listed. ChatGPT recommended it in 64.3% of 14 answers, Perplexity in 14.3% of 14. It opened an answer once, a first_rec_rate of 4.2.
Four of five engines recommended Kimai most among the top five: Claude across 14 answers, Gemini across 14, ChatGPT across 14 and Perplexity across 14. Grok was the exception, recommending Docker most among the top five across its 7 answers.
Docker also carries the widest gap between engines. Perplexity recommended it in 35.7% of its 14 answers, Grok in 100% of its 7, a spread of 64.3 points. That is the largest engine spread in the category this window.
Traggo shows a narrower but visible split in the same direction, at 14.3% of Perplexity's 14 answers and 64.3% of ChatGPT's 14. ActivityWatch reached 85.7% of Grok's 7 answers against 28.6% of Claude's 14 and 28.6% of ChatGPT's 14. Kimai varied least, between 85.7% and 100% across all five engines.
This is the first measured window on record for open-source time tracking software. It covers 2026-08-08 to 2026-09-05, 28 days, with 63 sampled answers across five engines. There is no prior window to compare against, so no entries, exits or share changes are reported here.
Kimai leads it now, recommended in 95.2% of those 63 answers, and named first in 28 runs. Solidtime follows at 82.5% of 63, then Docker at 55.6%, ActivityWatch at 41.3% and Traggo at 38.1%, all on the same 63 answers. Confidence intervals are wide at this sample size, with Kimai between 86.9 and 98.4 and Traggo between 27.1 and 50.4. Ranked products in the window total 57. The next resample, roughly a month out, gives the first comparison point.
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 time tracking 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), Kimai is recommended most often for open-source time tracking software, appearing in 95.2% of recommendations, followed by Solidtime (85.7%). This is a measurement of what AI assistants recommend, not an editorial verdict.
ChatGPT recommends Kimai most often for open-source time tracking 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 time tracking 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.
| Dockerdocker.com | OpenProjectopenproject.org | PostgreSQLpostgresql.org | Odooodoo.com | Invoice Ninjainvoiceninja.com | |
|---|---|---|---|---|---|
| Pricing | Pro: $11 a month, $9 a year (free tier available) ↗ sourceverified Sep 5, 2026 | Basic: $5.95 a month (free tier available) ↗ sourceverified Sep 5, 2026 | — | Custom: $49 a month (free tier available) ↗ sourceverified Sep 5, 2026 | Ninja Pro: $14 a month, $140 a year (free tier available) ↗ sourceverified Sep 5, 2026 |
| Features | Docker Scout ↗ sourceverified Sep 5, 2026 | Calendar ↗ sourceverified Sep 5, 2026 | feature robustness ↗ sourceverified Sep 5, 2026 | Inventory ↗ sourceverified Sep 5, 2026 | Professional Invoicing ↗ sourceverified Sep 5, 2026 |
| Platforms | Linux ↗ sourceverified Sep 5, 2026 | API ↗ sourceverified Sep 5, 2026 | — | API ↗ sourceverified Sep 5, 2026 | — |
| Integrations | — | LDAP ↗ sourceverified Sep 5, 2026 | — | Stripe ↗ sourceverified Sep 5, 2026 | Stripe ↗ sourceverified Sep 5, 2026 |
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