Zoho Desk leads the free-plan question most consistently, but no single brand has locked it down.
Zoho Desk appears in every one of the 12 answers and averages the second position, giving it the strongest foothold of any brand here. Freshdesk matches its 100% mention rate but trails by four slot-score points and sits a position lower on average, making it the closest challenger rather than a co-leader. HubSpot shows up in 8 of 12 answers yet is almost entirely absent from ChatGPT, which instead pushed FyneDesk to the top spot in all four of its responses, a divergence that reflects ChatGPT leaning on a fynedesk.io source that the other two models largely ignored. The core reason cited across answers is permanence: reviewers distinguish tools with a genuinely unlimited free tier from those hiding behind trial windows.
AI-generated analysis of the September 2026 measurements.
Every brand recommended for this question, from 12 answers across ChatGPT, Perplexity, and Gemini.
| # | Brand | Slot score | Appears in | Avg. position |
|---|---|---|---|---|
| 1 | Zoho Desk | 100% | #2 | |
| 2 | | 100% | #3 | |
| 3 | | 67% | #3 | |
| 4 | Tawk.to | 58% | #5 | |
| 5 | FyneDesk | 33% | 1st | |
| 6 | ProProfs Help Desk | 42% | #4 | |
| 7 | | 42% | #5 | |
| 8 | SparrowDesk | 33% | #3 |
Slot score is position-weighted, 0 to 100: being recommended first counts far more than a trailing mention. "Appears in" is the share of answers naming the brand at all.
The main measurement above is the assistants' real answers with live web access. These rows show the same question on other surfaces: the models' bare memory, and Google's own AI search experiences.
ChatGPT, Perplexity, and Gemini each answered this question in two phrasings, several times each, with live web access and citations: the closest API-reachable version of the real assistant experience (no personalization or account memory, which no vendor can provide). Model-memory answers (no web) are measured separately and shown above as a comparison surface. A brand counts once per answer that recommends it. The exact questions:
Part of the Customer Support ranking. Method details on the methodology page. Rankings reflect measured AI answers, not paid placement.
Who wins when the question changes:
Free teams also ask: best CRM for free · best project management tool for free · best no-code-builders for free · best ai-app-builders for free
We rerun the index every month. Drop your email and pick what to watch in Customer Support: the whole category or specific brands. Free, unsubscribe anytime.