# Gauges for SPC

> Gauges for SPC (iPhone/iPad app by Francisco Aparisi.)

- Source: https://appshunter.io/ios/app/gauges-for-spc/id1190126030 (this page in markdown: same URL + `.md`)
- Developer: [Francisco Aparisi](https://appshunter.io/developer/1084055472)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 11.0 · 30 MB
- Languages: English
- Released: 2017-01-03
- Data updated: 2026-06-10
- User reviews in markdown: https://appshunter.io/ios/app/gauges-for-spc/id1190126030/reviews.md

## What is Gauges for SPC?

This application permits to develop a control chart (statistical process control) to monitor process shifts employing optimized gauges. 

There are two options to monitor the process: 1.- An YT control chart that plots the number of units in the sample that have been classified by the gauge. 2.- Two control charts at the same time: YS control chart, that plots the units classified as small; YL control chart, that plots the units classified as large.

YT is better for monitoring variance shifts, and YS-YL for mean shifts. This monitoring can be applied to process where there are no defective units.

Both schemes can be designed with fixed sample size or with variable sample size.

The supported languages are Spanish and English.

This application is also available for OSX (MAC). Just search in its store.


## Version history (last 1 release)

### 2.3 — 2020-12-11

Bug fixing

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## More apps by Francisco Aparisi

- [Power of Hypothesis Testing](https://appshunter.io/ios/app/power-of-hypothesis-testing/id1084055473)
- [Calculator Xbar and S Charts](https://appshunter.io/ios/app/calculator-xbar-and-s-charts/id1085185552)
- [ARL Xbar Control Chart](https://appshunter.io/ios/app/arl-xbar-control-chart/id1085519193)
- [XBar control chart with VSS](https://appshunter.io/ios/app/xbar-control-chart-with-vss/id1085694274)
- [ARL simulator EWMA control chart](https://appshunter.io/ios/app/arl-simulator-ewma-control-chart/id1088604146)
- [Optimum EWMA control chart](https://appshunter.io/ios/app/optimum-ewma-control-chart/id1088666755)

All apps by Francisco Aparisi: https://appshunter.io/developer/1084055472

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*