Here is the myth worth busting up front. There is no league table where one of these platforms beats the other two on price for every buyer. A device-heavy estate with a lean help desk pays very differently from a process-heavy estate with a large fulfiller team and few managed assets. The rep who tells you their platform "always comes out cheaper for mid-market" is comparing their unit to your assumption, not to your numbers. This sits inside our wider 2026 ITSM platform cost comparison across 12 tools; this piece is the three-way detail for mid-market buyers weighing these specific vendors.
Book a competitive leverage review →How do InvGate, SysAid and Hornbill actually price?
Each vendor counts a different thing as the billable unit, and that single fact explains most of the confusion. The table below sets the models side by side. Treat the figures in your own quotes as the source of truth, because list pricing for all three is quote-based and varies by deal size, region and term.
| Dimension | InvGate | SysAid | Hornbill |
|---|---|---|---|
| Primary billing unit | Named or concurrent agents | Admins (agents) | Subscribers (active users) |
| Asset cost | Asset nodes priced separately | Managed assets in the licence math | No separate asset unit in core |
| Where cost concentrates | Agent count plus discovered nodes | Admin count plus asset volume | Subscriber count and tier |
| Pricing transparency | Quote-based | Quote-based | Quote-based, banded |
| Best fit (cost view) | Lean help desk, controlled asset estate | Asset and ITAM-led buyers | Larger fulfiller base, light asset load |
| Watch item at renewal | Node growth from discovery | Asset count drift | Subscriber reclassification |
Read the table as a warning, not a verdict. The "best fit" row is the shape of estate each model tends to favour on cost, not a promise. Confirm the billing unit, the asset definition and the count against your order form, because vendors define "agent," "admin," "asset" and "subscriber" in their own language, and those definitions are where bills quietly grow.
Why can't you compare the three quotes directly?
Because a per-agent number, a per-admin-plus-asset number and a per-subscriber number are not the same currency. The vendor will hand you a total and invite you to compare totals, which favours whichever platform happened to scope your estate most generously. The fix is to rebuild each quote in two units you control: cost per fulfiller and cost per managed asset, using your real headcount and your real device count. Once all three quotes are expressed in those terms, the differences stop being marketing and start being math.
This is the same discipline behind picking a model at all, which we cover in per-agent vs per-fulfiller vs flat pricing by org size. The unit you sign on shapes every renewal after it, so the comparison work you do now is the leverage you keep for years.
Where does each platform quietly cost more?
Every model has a leak point, and naming it is half the negotiation. On InvGate, watch the asset nodes. Discovery is good at finding devices, and every node it surfaces can carry cost, so an unmanaged discovery scope inflates the bill without anyone choosing to spend more. On SysAid, the managed-asset count is the line that drifts, especially in estates with high device churn or virtual machines that are counted as assets. On Hornbill, the risk is subscriber definition: who counts as an active subscriber, and whether occasional approvers and managers are being licensed as full ones.
None of these are flaws in the products. They are simply the places where the billing unit and your reality drift apart, and where a vendor that quotes off last year's inflated count keeps you paying for growth you never agreed to. Reconciling those counts before the quote lands is the core of license optimization work, and it is usually worth more than the headline discount on the table.
Which one wins for a mid-market buyer?
The honest answer is that it depends on your ratio of agents to assets to occasional users, and any rep who skips that caveat is selling, not advising. As a rough guide: an estate with a small, stable help desk and a contained device footprint tends to do well on InvGate; an asset-led or ITAM-driven buyer often finds SysAid's model aligns with how it already thinks about cost; and an organisation with a large fulfiller base but light asset management frequently lands best on Hornbill's subscriber model. These are tendencies, not rankings, and the only way to settle it is to run your own counts through all three.
For the enterprise end of the same decision, the comparable analysis is in ServiceNow vs BMC Helix vs Ivanti on enterprise cost. Across both tiers the lesson holds: the platform that wins on a slide can lose on your estate once the units are normalised.
Our gated ITSM Competitive Leverage Playbook includes the quote-normalisation worksheet that turns three non-comparable bids into one decision.
How to run the comparison without losing leverage
Use a multi-bid process the way it is meant to be used: to discover your real price, not to threaten. Follow the sequence below and every quote becomes a data point rather than a leap of faith.
- Fix your counts first. Lock down your fulfiller headcount, your managed-device count and your occasional-user population before any vendor scopes you. Their scope should match your number, not set it.
- Demand the unit definition in writing. Get each vendor's written definition of agent, admin, asset and subscriber. Ambiguity here is the most expensive thing in the contract.
- Normalise to two units. Convert every bid to cost per fulfiller and cost per managed asset for your estate. Compare those, never the totals.
- Cap the growth units. Negotiate a cap on the asset node, managed-asset or subscriber rate so a busy discovery scan or a reclassification does not reprice you mid-term.
- Hold a credible alternative. Keep at least two of the three live to the end. A buyer with one option has no leverage; a buyer with two has a market.
Run this way, the three-way comparison stops being a coin toss and becomes the reason your final price is defensible. As an independent, buyer-side firm we have negotiated more than $420M in ITSM contract value across 500+ engagements and 10 platforms, averaging a 30% reduction, and the pattern repeats: the saving is in the units, not the discount.
What to do next
Pick your two finalists on fit, normalise all bids to cost per fulfiller and cost per managed asset, then negotiate the growth caps before you sign. If you want the comparison run for you, with the unit math rebuilt and a credible alternative held to the close, that is our competitive leverage engagement, on fixed fee or gainshare.
Frequently asked questions
- Which is cheaper: InvGate, SysAid or Hornbill?
- There is no fixed cheapest. They price on different units, so the lowest total depends on your ratio of agents to assets to occasional users. Normalise every bid to cost per fulfiller and cost per managed asset to see the real winner for your estate.
- Why do the three quotes look so different?
- Because a per-agent number, a per-admin-plus-asset number and a per-subscriber number are not comparable currencies. Rebuild each in your own units before comparing, and confirm every definition against the order form.
- Do asset counts really move the price?
- Yes. InvGate and SysAid both attach cost to nodes or managed assets, so a device-heavy estate can pay more there than on a per-subscriber model like Hornbill, even at the same agent count. Cap the asset rate before signing.
Book a competitive leverage review.
We normalise all three bids to your real units, hold a credible alternative to the close, and negotiate the growth caps. Fixed fee or gainshare.
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