Inside the app
A closer look.
About this app
Made for a clear purpose.
Processquanta: SPC Lab is a focused, fully on-device app. On-device statistical process-control studio for I-MR, Xbar-R, p/np/c/u charts, rules, Cp/Cpk/Pp/Ppk, Gage R&R screening, lot comparisons, and audit-ready exports.
KEY FEATURES - I-MR control chart - Cp/Cpk and Pp/Ppk - Special-cause flags - Local part and setup evidence - Editable sample data and CSV import - Side-by-side scenario comparison - Local PDF evidence export - Fifty-three original offline reference plates
ONE-TIME AND PRIVATE - One paid download; no subscription or in-app purchase - No account, advertising, analytics, tracking, or developer-operated backend - Core features and bundled content work offline - Work remains on device unless you deliberately share or export it through an Apple system interface
Control charts support investigation but do not authorize product release. Validate the measurement system, subgroup design, distribution assumptions, reaction plan, and quality requirements.
