osTicket vs Zendesk
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Zendesk is the stronger AI pick in Help Desk: it has a visibility score of 60.4 versus 0.3 for osTicket, and ranks ahead in 100% of the answers that name both.
Choose osTicket if…
- AI answers describe it more positively (67% vs 34% positive)
- Recommended as a free, self-hosted helpdesk option
Choose Zendesk if…
- You want the brand AI engines rank higher (60.4 vs 0.3)
- You need SOC 2 Type II or ISO 27001:2022 or ISO 27018:2019 or ISO 27701:2019 or ISO 27017:2015 or ISO 42001:2023 or FedRAMP LI-SaaS or Cyber Essentials Plus coverage
- Industry leader in omnichannel customer support
- Scalable platform for large enterprise teams
AI visibility side by side
Latest weekly run · Nov 3
| Metric | osTicket | Zendesk |
|---|---|---|
| Visibility score | 0.3% | 60.4% |
| Change vs last week | down−0.6% | up+5.7% |
| Rank in Help Desk | #35 | #2 |
| Share of voice | 0.2% | 11.6% |
| Mentions this run | 1 | 58 |
| Positive in AI answers | 67% | 34% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
osTicket −0.6000000000000001pp · Zendesk +5.699999999999996pp over 1 weekly runs.
Engine by engine
Zendesk leads on 3 of 3 engines
Head to head in AI answers
1 engine answers name both brands
| Prompt | Engine | osTicket | Zendesk |
|---|---|---|---|
| Alternatives to the most popular help desk platform | Perplexity | #12 | #1 |
Features, pricing & fit
| Dimension | osTicket | Zendesk |
|---|---|---|
| Pricing model | — | Per seat |
| Entry price | — | $19 per seat / mo |
| Free plan | — | No |
| Deployment | Self-hosted (free download) or cloud-hosted via SupportSystem | Cloud (SaaS) |
| Integrations | — | 1800+ |
| Compliance | — | SOC 2 Type II, ISO 27001:2022, ISO 27018:2019, ISO 27701:2019, ISO 27017:2015, ISO 42001:2023, FedRAMP LI-SaaS, Cyber Essentials Plus |
| Support | Mailing lists for upgrades and security patches, YouTube tutorials | Help Center, Community, Partners |
| Founded | — | 2007 |
| Headquarters | Alexandria, Louisiana | San Francisco, California, United States |
| Employees | — | 5,000+ |
| Funding | — | Take-private (Hellman & Friedman, Permira) |
| Best for | Small businesses wanting a free, customizable ticketing system they can host themselves | Support teams from startups to enterprises that need omnichannel ticketing with AI automation |
Plans side by side
osTicket
Pricing not available.
Zendesk
Pros and cons
Themes from the AI answers that mention each brand
osTicket
- Recommended as a free, self-hosted helpdesk option
Zendesk
- Industry leader in omnichannel customer support
- Scalable platform for large enterprise teams
- Mature ticketing operations and SLA management
- Extensive marketplace and broad integrations
- Free trial available for 14 days
- Heavy, slow deployment compared with lighter tools
- High per-agent costs
- AI add-ons billed separately on top of base fee
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 98.8%·next run
Cite as: SlateIndex, “osTicket vs Zendesk”, https://slateindex.ai/compare/osticket-vs-zendesk, data of Nov 3, 2026. Licence: CC BY 4.0.