SPCVisualsIf you are shortlisting SPC software you have probably arrived at the same three or four names. Here is what each of them actually is, who owns it, and what size of operation it is built for.
Checked against the vendors' own sites on 25 August 2026. Ownership in this market changes hands often, so verify before quoting any of it.
The first thing worth knowing
WinSPC and InfinityQS are the same company. Both winspc.com and infinityqs.com now redirect to advantive.com, which markets WinSPC as DataNet WinSPC and InfinityQS as a product line of its own.
If your shortlist has both on it as independent options, it is shorter than you think. Two quotes from one vendor is not competitive tension, and it is worth knowing before the negotiation rather than after it.
What each one is
WinSPC (Advantive)
Real-time SPC aimed squarely at the shop floor: high-speed data capture from gauges and machines, control charts on the floor, and alerting on process signals. It is a mature product with WinSPC 10 as the current major release, and it runs on the desktop with integrations into plant systems rather than as a browser-first application.
Named customers are large: Autoliv, Ben & Jerry's, GAF, Ocean Spray.
No pricing is published. The call to action is a demo booking.
InfinityQS (Advantive)
Two products that are sold as a pair. ProFicient is the on-premise SPC platform — real-time collection, workflow, compliance reporting. Enact is the cloud platform that aggregates quality data across sites for enterprise visibility. The design intent is that a plant runs ProFicient locally while Enact gives the group a view across all of them.
Same customer profile, mid-to-large enterprise, and the same list of household names.
No pricing is published. Demo booking, then sales.
Minitab
Not really in this category, though it is on every shortlist. Minitab is a statistics package for studies and analysis, not a live charting system, and it publishes its list prices — we go through them here, along with why the per-named-user structure is what decides the bill.
The Excel add-ins
SPC for Excel, QI Macros and similar. They add SPC charts to a spreadsheet you already own, cost a fraction of anything above, and are genuinely the right answer for a single person doing occasional analysis. What they cannot do is keep a chart current for anyone who is not sitting in front of that workbook.
What "no published pricing" tells you
It is not a criticism — it is a description of who the product is for. Software sold through a demo and a sales conversation is priced per deployment, and that model is built around implementations large enough to justify the conversation: site licences, integration work, and a rollout with a project manager attached.
If you run a plant that size, that is the correct way to buy, and the products above are proven at it. Nothing here suggests otherwise.
If you run one line, or three, and want a chart running this week, the sales cycle is itself the cost. That is the gap this exists in.
Where we fit, and where we do not
Honestly stated, because you will find out either way:
We are the wrong answer if you need automated collection from gauges and machines at high speed, an on-premise deployment inside a validated system, a central quality-data warehouse across a dozen sites, or a vendor who will send somebody to your plant. The products above do those things and we do not.
We are worth a look if the chart matters more than the rollout — one line or a handful, a browser, data arriving by CSV or API, and a price you can read on the pricing page rather than request. Our line plan is €169 a month, per workspace rather than per named user, and the free plan keeps one characteristic forever with no card.
Check the arithmetic before the vendor
Whatever you shortlist, the numbers should agree between tools. The free tools here run the same engine our product runs, with no signup and nothing stored. Paste readings from a chart your current system produced into the control chart generator or the Cp/Cpk calculator and confirm the limits and the capability match.
If two tools disagree about a control limit, one of them is computing something other than what you think it is, and that is worth resolving before any of the rest of this matters.
WinSPC and InfinityQS are trademarks of Advantive; Minitab is a registered trademark of Minitab, LLC. We are not affiliated with either, and everything above is drawn from their published material on the date given.