The QC SPC Chart software is an interactive SPC chart (6-sigma) application aimed at quality control professionals (and students) who want to view industry standard statistical quality control charts on their mobile devices. Typical users will monitor critical quality factors in manufacturing, process, and service industries, and display the results in one of the many supported chart types. Chart types include: variable control charts (XBar-R, XBar-Sigma, Individual-Range, and Median-Range), and attribute control charts for monitoring defects (p-, np-, c-, u-, and DPMO charts). The software will automatically calculate SPC control limits using historical data for the supported variable control chart and attribute control chart types. Alarms can be generated for standard +3 sigma control limits, or the WECO (Western Electric) rules. It will also calculate process capability ratios (Cp, Cpk) and process performance indices (Pp, Ppk). A set of specification limits can also be added to the chart.
The SPC charts are displayed as one or two synchronized charts, under the control of a scroll bar. The scroll bar can be replaced by an integrated zoom control which allows for the display of charts with a custom time frame. Auto-scaling of the charts y-axes keeps everything in view. An integrated table appears above the chart, that displays information about the process under view, and each sample interval plotted in the chart. The table displays time, individual sample values, sample statistics, process indices, alarm status, and any notes entered for that sample interval.
The user can customize the SPC chart and control limits using built-in setup forms. Both auto-calculated and manually set control limits are supported. The user can manually input and edit sample data from within the program. The user can also import sample data from a CSV (comma separated value) file. The entire chart setup, and data, can be saved on the host device so that they are easily accessible the next time you use the app. You can even set the current setup to be auto-loaded the next time the app starts.
The software displays a lot of information on the screen at once, and it is recommended that it be used on devices with a minimum of 1200x800 pixel resolution, landscape or portrait mode.
In the student version of the software the total number of sample intervals (data points) which can be displayed at one time is limited to 100.
Updated with latest versions of support libraries.
Ratings and ReviewsSee All
Excellent for charting analytics
Worth paying for the commercial version (low cost btw) for serious statistical process control or analytics app development. However, free version is very handy for learning the SPC Chart tools. If you are in the business of proving six sigma compliance of your quality control then these tools will allow you to show off your data using all the standard methodologies.
Can’t load data from external file
How can this be of any value if you cannot load data from an external file?! Loading one by one is .... excruciating. I’m using the free version. If this is an artifact of the free version, they should disclose that in the app narrative.
Developer Response ,
The program has always been able to load/save the chart setup, and data, from an external file (up to 100 sample intervals for the Free Version). This feature is accessed from the Setup | File menu. For IOS it is documented on pages 35-38 and 43-46 of the online manual. IOS doesn't make it easy getting data files on and off a tablet but it can be done using the procedure described in the manual. "File transfer" is found in the index.
- Quinn-Curtis, Inc.
- 42.5 MB
Requires iOS 8.0 or later. Compatible with iPhone 5S, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE (1st generation), iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2nd generation), iPhone 12 mini, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPad Air, iPad Air Wi‑Fi + Cellular, iPad mini 2, iPad mini 2 Wi‑Fi + Cellular, iPad Air 2, iPad Air 2 Wi‑Fi + Cellular, iPad mini 3, iPad mini 3 Wi‑Fi + Cellular, iPad mini 4, iPad mini 4 Wi‑Fi + Cellular, iPad Pro (12.9‑inch), iPad Pro (12.9‑inch) Wi-Fi + Cellular, iPad Pro (9.7‑inch), iPad Pro (9.7‑inch) Wi‑Fi + Cellular, iPad (5th generation), iPad (5th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (2nd generation), iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (10.5‑inch), iPad Pro (10.5‑inch) Wi‑Fi + Cellular, iPad (6th generation), iPad (6th generation) Wi‑Fi + Cellular, iPad Pro (11‑inch), iPad Pro (11‑inch) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (3rd generation), iPad Pro (12.9‑inch) (3rd generation) Wi‑Fi + Cellular, iPad mini (5th generation), iPad mini (5th generation) Wi‑Fi + Cellular, iPad Air (3rd generation), iPad Air (3rd generation) Wi‑Fi + Cellular, iPad (7th generation), iPad (7th generation) Wi‑Fi + Cellular, iPad Pro (11‑inch) (2nd generation), iPad Pro (11‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (4th generation), iPad Pro (12.9‑inch) (4th generation) Wi‑Fi + Cellular, iPad Air (4th generation), iPad Air (4th generation) Wi‑Fi + Cellular, iPad (8th generation), iPad (8th generation) Wi‑Fi + Cellular, iPod touch (6th generation), and iPod touch (7th generation).
- Age Rating
- © Copyright Quinn-Curtis, Inc. 2020
With Family Sharing set up, up to six family members can use this app.