osTicket vs Zoho Desk: what happens when each one's free tier runs out

Two different definitions of “free”

“osTicket vs Zoho Desk” usually gets framed as open-source versus SaaS, which is true but not the part that actually decides which one fits a small IT shop. The sharper question is what each vendor’s free tier actually promises, and where it stops. osTicket’s free edition has no seat cap and no expiration date, ever — the cost is that you’re the one running the server. Zoho Desk’s free plan is fully hosted and maintained, but hard-capped at three user licenses forever. One is free with no ceiling but real ongoing work; the other is free with real convenience but a wall you’ll eventually hit. Here’s what each vendor’s own site said when checked live today, 2026-09-25.

What osTicket’s free tier actually gives you

Per osTicket’s editions page, verified live today, the Open Source edition is a free, self-hosted download with community-forum support only — no agent limit, no time limit, no feature gate on the ticketing core. You install it, patch it, and back it up yourself. The two paid tiers above it — Cloud-Hosted at $12/agent/month (30-day trial) and a custom-quoted Virtual Appliance — don’t unlock new ticketing features over the free edition. What they sell is who does the operational work: managed upgrades, daily backups, an infrastructure uptime guarantee, and “email & phone ongoing support” for reaching osTicket’s own team. That last point is worth being precise about, since it’s easy to misread on a skim: it’s support for the software, not a phone channel your customers can call into. Nothing in osTicket’s lineup, at any tier, lets a caller dial in and reach a ticket.

What Zoho Desk’s free tier actually gives you

Zoho Desk’s pricing page, checked the same day, lists a Free Edition described as “Free Forever” with three user licenses and basic email ticketing — no trial clock, no credit card, no time bomb. Where it differs from osTicket’s free tier is the ceiling: three seats is the whole plan, permanently. A fourth technician means moving to a paid tier, not adding a seat. The paid ladder (billed annually, per user/month, prices as shown live today): Express at ₹420, Standard at ₹800, Professional at ₹1,400, and Enterprise at ₹2,400 — with real telephony integration only unlocking at Professional, described on Zoho’s own page as the ability to “integrate with leading telephony providers and set up a toll-free number,” not a built-in phone system.

The crossover point, made concrete

Put the two free tiers side by side and the shape of the trade becomes obvious:

A two-person team that never plans to grow past three seats gets more for free on Zoho Desk — hosting, backups, and upgrades included, at zero cost, indefinitely. A team that expects to add a fourth or fifth technician gets more runway on osTicket, because its free tier doesn’t narrow as headcount grows — only the burden of running it does. The two products aren’t competing on price at the free tier at all; they’re offering different kinds of free, and which one is “better” depends entirely on whether your constraint is money or time.

What crossing each wall costs

The moment either team outgrows its free tier, the numbers diverge fast.

Leaving osTicket’s free tier isn’t really a pricing decision — the ticketing features don’t change on the paid tiers, only who patches the server. The trigger is usually a bad upgrade, a backup that didn’t restore cleanly, or simply not having the hours to keep a PHP/MySQL stack current. At that point, $12/agent/month for Cloud-Hosted buys back that time, but the ticketing product underneath is the exact same thing you were already running free.

Leaving Zoho Desk’s free tier is a hard fork the moment you hire technician number four — there’s no partial step, no “just pay for one more seat” option at the free tier’s price. The whole team moves to Express at ₹420/user/month at minimum, and if phone support is the actual reason you’re upgrading, the real jump is to Professional at ₹1,400/user/month — more than 3x Express — plus whatever a separate telephony provider bills on top, since Zoho doesn’t sell the phone line itself.

For a 4-tech team specifically: osTicket stays $0 to keep running (plus your own time), while Zoho Desk’s free tier is no longer an option at all — you’re paying Express at minimum just to add the fourth seat, with Professional-tier telephony still a separate ₹1,400/user/month jump and a separate telephony contract past that if a customer needs to call in.

The gap both hit at every tier

For a 2–10 person IT shop or MSP — the buyer most likely to be weighing these two seriously — this is the part neither vendor’s pricing page changes: nobody answers a phone call natively on osTicket at any tier, and Zoho Desk only gets there at its second-most-expensive tier, and even then it’s wiring in a third-party provider rather than shipping a phone system. If the reason you’re comparing these two is that a client called about a downed server and nobody picked up, moving between osTicket and Zoho Desk — free tier or paid — doesn’t close that gap on its own. Our deeper look at what osTicket’s edition ladder costs beyond the sticker price and the real cost of getting phone support working on Zoho Desk against Freshdesk both go further into that gap on each side individually.

Which one to pick

• Stay on osTicket’s free tier if you’re comfortable owning the server, your team is likely to grow past three technicians, and email/web-form/API tickets cover how work comes in.
• Start on Zoho Desk’s free tier if your team is genuinely capped near three people for now, you’d rather not run infrastructure, and you’re fine revisiting the decision if you grow.
• Budget for a real phone integration on either one if a client calling in is a regular occurrence — neither free tier, and neither vendor’s cheapest paid tier, includes it.

Where ITSM fits into this

ITSM starts from a free tier too — 2 seats, $0, instant self-serve signup — but the ceiling works differently than either tool above: growing past the free tier means Basic at $29/month with 3 seats included and extra seats at just $5/month, not a 3x jump to unlock telephony or a self-managed server to keep patched. The AI phone agent and browser softphone are part of the product from day one, answering calls using live ticket data instead of routing to a support line (osTicket) or requiring a separate provider contract (Zoho Desk). Registration takes a few minutes if you want to see the free tier and the ticket model firsthand.

Honest note: ITSM is a small product with no public customers yet — not a fair fight against osTicket’s years of community modules or Zoho Desk’s much larger platform. If the phone gap is what brought you to this comparison in the first place, it’s worth the same ten minutes either way.