QA/S SPC vs SigmaDesk

QA/S SPC8.6Visit SigmaDesk8.3Visit

Higher score QA/S SPC #3 in SPC Software 8.6/10 Pricing on request ✓ 3 of 5 features Contact Benchmark

vs

SigmaDesk #5 in SPC Software 8.3/10 Free plan Free plan✓ 4 of 5 features Visit SigmaDesk

• QA/S SPC fits best

  Production teams connecting SPC with gauges and MES

• SigmaDesk fits best

  Individuals and small teams wanting free SPC

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Side by side

Feature	QA/S SPC 8.6/10 Visit ↗	SigmaDesk 8.3/10 Visit ↗
At a glance
Editor score	8.6	8.3
Ranking	#3 in SPC Software	#5 in SPC Software
Best for	Production teams connecting SPC with gauges and MES	Individuals and small teams wanting free SPC
Pricing model	Paid	Free
Starting price	Pricing on request	Free
Free plan	Not checked yet	✓ (best)
Free trial	—	—
Deployment	Cloud, Desktop	Cloud
Platforms	Web, Windows	Web
Built for	Small business, Mid-market, Enterprise	Solo, Small business, Mid-market
Features QA/S SPC 3/5 · SigmaDesk 4/5
Process capability analysis	✓	✓
Gage R&R / MSA	Not checked yet	✓ (best)
Real-time monitoring	✓	✓
Rule-based alerts	✓	✓
API access	Not checked yet	Not checked yet
Specs
Data collection mode	Mixed	Manual
Deployment model	On_premise	Cloud
Our review
Pros	Calculates Cp, Cpk, Pp and Ppk alongside control charts. Collects data from multiple machines at one station. Connects Sylvac and Mitutoyo gauges and synchronizes with MES and ERP.	Covers variable and attribute control charts across common chart types Includes Cp, Cpk, Pp, Ppk and ANOVA-based Gage R&R analysis Offers violation detection, dashboards, sharing and PDF report export
Cons	Pricing requires contacting the vendor. Deployment details span cloud and desktop, while hosting specifics are unclear. Email is the listed support channel.	Measurement data must be entered or pasted manually Saving studies and collaboration require a signed-in account Web-only deployment may not suit offline or local-install workflows
Our verdict	QA/S SPC is a statistical process control product for manufacturing operators, quality personnel, engineers and managers. It combines capability calculations such as Cp, Cpk, Pp and Ppk with control charts, dashboards and quality reports.… Read the review →	SigmaDesk is browser-based statistical process control software for quality engineers and manufacturing teams. It supports manual entry or pasted measurement data, interactive chart recalculation, and study management through an account.… Read the review →

Strengths and trade-offs

• QA/S SPC — where it wins

  • Calculates Cp, Cpk, Pp and Ppk alongside control charts.
  • Collects data from multiple machines at one station.
  • Connects Sylvac and Mitutoyo gauges and synchronizes with MES and ERP.

  Where it doesn't

  • Pricing requires contacting the vendor.
  • Deployment details span cloud and desktop, while hosting specifics are unclear.
  • Email is the listed support channel.

• SigmaDesk — where it wins

  • Covers variable and attribute control charts across common chart types
  • Includes Cp, Cpk, Pp, Ppk and ANOVA-based Gage R&R analysis
  • Offers violation detection, dashboards, sharing and PDF report export

  Where it doesn't

  • Measurement data must be entered or pasted manually
  • Saving studies and collaboration require a signed-in account
  • Web-only deployment may not suit offline or local-install workflows

• QA/S SPC8.6/10 · Pricing on request

  Manufacturing SPC with gauge links, machine data collection and MES/ERP synchronization.

  Contact BenchmarkFull verdict →
• SigmaDesk8.3/10 · Free plan

  Free, browser-based SPC with broad charting, capability, Gage R&R and reporting tools.

  Visit SigmaDeskFull verdict →