Standard Deviation Calculator2.1 - App Store
You'll be able to see results in few seconds.
Publisher Description
Use this app to calculate the standard deviation of a set of values.
It will also return the:
-mean(average)
-variance
-population deviation
-Median
-Q1 & Q3
To add a value to the set press "+Row". When all data are in press "Calculate".
Note: Population deviation (n-1) is unbiased, while normal standard deviation (n) is biased.
To calulate the z-score enter a number into the z-score tab, then click find z-score. The z-score will be based off the main table.
Version History Fixed some calculation issues with the five number summary.
Small UI changes 2.1 09/05/2016 * Scrolling and auto scrolling greatly improved.
* Better keypad awareness.
* Improved handling of empty rows.
* No longer must you manually delete them by swiping, but it is still a option.
* Updated app icon.
+ Support for larger screen sizes.
+ First row is added for you for quickly stating input.
+ iPad 'enter' key relabeled as next and adds a row too.
* Other smaller fixes and improvements.
* 2.0 Version Bump 2.0 02/03/2016 +New, clean design.
+New 'Results' screen, leaves more space for the set.
+More calculations, including:
•Q1 & Q3
•Median
•Min & Max
*Fixed: could not get out of z-score screen.
*z-score is more accurate
*Changed the purchase window.
*Easier to scroll. 1.3 01/07/2014 +Option to remove advertisements.
*Fixed the crash when background is tapped.
*Fixed the mean not registering correctly. 1.2 12/03/2013 +Now find the z-score of the data in the table.
*Changed launch image. 1.1 11/01/2013 1.0 10/14/2013
About Standard Deviation Calculator
The company that develops Standard Deviation Calculator is Keely Hill. The latest version released by its developer is 2.1.
To install Standard Deviation Calculator on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Standard Deviation Calculator as malware if the download link is broken.
How to install Standard Deviation Calculator on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Standard Deviation Calculator is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Standard Deviation Calculator is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 2.1
posted on 2026-10-14
Version History Fixed some calculation issues with the five number summary.
Small UI changes 2.1 09/05/2016 * Scrolling and auto scrolling greatly improved.
* Better keypad awareness.
* Improved handling of empty rows.
* No longer must you manually delete them by swiping, but it is still a option.
* Updated app icon.
+ Support for larger screen sizes.
+ First row is added for you for quickly stating input.
+ iPad 'enter' key relabeled as next and adds a row too.
* Other smaller fixes and improvements.
* 2.0 Version Bump 2.0 02/03/2016 +New, clean design.
+New 'Results' screen, leaves more space for the set.
+More calculations, including:
•Q1 & Q3
•Median
•Min & Max
*Fixed: could not get out of z-score screen.
*z-score is more accurate
*Changed the purchase window.
*Easier to scroll. 1.3 01/07/2014 +Option to remove advertisements.
*Fixed the crash when background is tapped.
*Fixed the mean not registering correctly. 1.2 12/03/2013 +Now find the z-score of the data in the table.
*Changed launch image. 1.1 11/01/2013 1.0 10/14/2013
version 2.1
posted on 2026-09-04
Version History This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
Fixed some calculation issues with the five number summary.
Small UI changes 2.1 09/05/2016 * Scrolling and auto scrolling greatly improved.
* Better keypad awareness.
* Improved handling of empty rows.
* No longer must you manually delete them by swiping, but it is still a option.
* Updated app icon.
+ Support for larger screen sizes.
+ First row is added for you for quickly stating input.
+ iPad 'enter' key relabeled as next and adds a row too.
* Other smaller fixes and improvements.
* 2.0 Version Bump 2.0 02/03/2016 +New, clean design.
+New 'Results' screen, leaves more space for the set.
+More calculations, including:
•Q1 & Q3
•Median
•Min & Max
*Fixed: could not get out of z-score screen.
*z-score is more accurate
*Changed the purchase window.
*Easier to scroll. 1.3 01/07/2014 +Option to remove advertisements.
*Fixed the crash when background is tapped.
*Fixed the mean not registering correctly. 1.2 12/03/2013 +Now find the z-score of the data in the table.
*Changed launch image. 1.1 11/01/2013 1.0 10/14/2013
version 2.1
posted on 2026-08-22
Version History This update from Apple will improve the functionality of this app. No new features are included.
Fixed some calculation issues with the five number summary.
Small UI changes 2.1 09/05/2016 * Scrolling and auto scrolling greatly improved.
* Better keypad awareness.
* Improved handling of empty rows.
* No longer must you manually delete them by swiping, but it is still a option.
* Updated app icon.
+ Support for larger screen sizes.
+ First row is added for you for quickly stating input.
+ iPad 'enter' key relabeled as next and adds a row too.
* Other smaller fixes and improvements.
* 2.0 Version Bump 2.0 02/03/2016 +New, clean design.
+New 'Results' screen, leaves more space for the set.
+More calculations, including:
•Q1 & Q3
•Median
•Min & Max
*Fixed: could not get out of z-score screen.
*z-score is more accurate
*Changed the purchase window.
*Easier to scroll. 1.3 01/07/2014 +Option to remove advertisements.
*Fixed the crash when background is tapped.
*Fixed the mean not registering correctly. 1.2 12/03/2013 +Now find the z-score of the data in the table.
*Changed launch image. 1.1 11/01/2013 1.0 10/14/2013
version 2.1
posted on 2016-09-05
Sep 5, 2016 Version 2.1
This app has been updated by Apple to display the Apple Watch app icon.
Fixed some calculation issues with the five number summary.
Small UI changes
version 2.1
posted on 2016-09-05
This app has been updated by Apple to display the Apple Watch app icon.
Fixed some calculation issues with the five number summary.
Small UI changes
Disclaimer
Official App Store Link
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