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Head-to-head · SPC Software

SigmaDesk vs Q-DAS qs-STAT

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score SigmaDesk #5 in SPC Software 8.3/10 Free plan Free plan✓ 4 of 5 features Visit SigmaDesk
Q-DAS qs-STAT #8 in SPC Software 7.9/10 Pricing on request ✓ 1 of 5 features Contact Hexagon

SigmaDesk leads on 0 checks, Q-DAS qs-STAT on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSigmaDesk · 8.3/10
  • Free planonly SigmaDesk
  • Most featuresSigmaDesk · 4 of 5

SigmaDesk scores higher on our rubric for spc software: 8.3 against 7.9 out of 10; our editors rank them #5 and #8.

On data collection mode, Q-DAS qs-STAT gives you Mixed where SigmaDesk offers Manual. On deployment model, Q-DAS qs-STAT gives you Hybrid where SigmaDesk offers Cloud.

SigmaDesk is the better fit for individuals and small teams wanting free SPC. Q-DAS qs-STAT is the better fit for manufacturers focused on capability studies and reports.

  • SigmaDesk fits best

    Individuals and small teams wanting free SPC

  • Q-DAS qs-STAT fits best

    Manufacturers focused on capability studies and reports

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature SigmaDesk 8.3/10 Visit ↗ Q-DAS qs-STAT 7.9/10 Visit ↗
At a glance
Editor score 8.3 7.9
Ranking #5 in SPC Software #8 in SPC Software
Best for Individuals and small teams wanting free SPC Manufacturers focused on capability studies and reports
Pricing model Free Paid
Starting price Free Pricing on request
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Cloud Cloud, Self-hosted
Platforms Web Web
Built for Solo, Small business, Mid-market Mid-market, Enterprise
Features SigmaDesk 4/5 · Q-DAS qs-STAT 1/5
Process capability analysis ✓ ✓
Gage R&R / MSA ✓ (best) Not checked yet
Real-time monitoring ✓ (best) Not checked yet
Rule-based alerts ✓ (best) Not checked yet
API access Not checked yet Not checked yet
Specs
Data collection mode Manual Mixed
Deployment model Cloud Hybrid
Our review
Pros
  • 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
  • Calculates Cp, Cpk, Pp and Ppk process and machine capability indices
  • Presents statistical results in charts, tables and PDF reports
  • Connects with SAP R/3 QM, Q-DM and serial measurement devices
Cons
  • 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
  • Pricing requires contacting sales
  • Its focus is production-quality analysis rather than general-purpose statistics
  • Published support channels list documentation
Our verdict

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 →

Q-DAS qs-STAT is Hexagon software for statistically evaluating production quality information and assessing industrial production processes. It is aimed at manufacturing quality, process and production engineers who need repeatable…

Read the review →
  1. SigmaDeskSPC Software 8.3Free plan
  2. Q-DAS qs-STATSPC Software 7.9Pricing on request

Strengths and trade-offs

  • 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

  • Q-DAS qs-STAT — where it wins

    • Calculates Cp, Cpk, Pp and Ppk process and machine capability indices
    • Presents statistical results in charts, tables and PDF reports
    • Connects with SAP R/3 QM, Q-DM and serial measurement devices

    Where it doesn't

    • Pricing requires contacting sales
    • Its focus is production-quality analysis rather than general-purpose statistics
    • Published support channels list documentation

More comparisons

All SPC software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update