Browser Six Sigma toolkit for Gage R&R/MSA, SPC, capability (Cp/Cpk), and DOE
About ChartSays
ChartSays runs Gage R&R/MSA, SPC control charts, process capability (Cp/Cpk/Pp/Ppk), and DOE in the browser. Free plan: unlimited standard analyses, watermarked exports, no AI. Paid: AI interpretation + remove watermark ($14.90/mo or $129/yr). Launch code LAUNCH30 = 30% off first year of annual only, limited redemptions, expires Nov 19, 2026. Built by John Fan.
PlatformsWeb
LaunchedOct 12, 2026
✓ VerifiedOct 25, 2026
Key features
- Gage R&R / MSA in the browser
- SPC control charts (X̄-R, I-MR, and more)
- Process capability Cp/Cpk/Pp/Ppk
- Design of Experiments (DOE)
- Free unlimited standard analyses (watermarked exports)
- Paid AI interpretation + remove watermark
Made by
John Fan
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