Comparison

Calculate Standard Deviation vs Izzy Statistics Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calculate Standard Deviation

This app calculates standard deviation, variance, and other statistical measures for a given set of values. It simplifies complex statistical formulas with a user-friendly interface and accurate results.

Highlights
  • Calculate Standard Deviation
  • Calculate Variance
  • Calculate Mean
  • Calculate Coefficient of Variance
  • Calculate Standard Error of Mean
  • User-friendly interface
  • Accurate statistical results
Features
Read full description

Make a use of this standard deviation calculator app to attain the results for standard deviation calculations right now: In the context of statistics, the term standard deviation (SD) refers to the variation or dispersion of the data set of values. A lower SD (also called estimated value) shows that the data points exist very close to the origin. Whereas a higher value of it leads the data points to disperse over a wider range of the values. Use this standard deviation app to determine the standard deviation and variance with a single click. With the help of SD, you can easily find how close the sample mean is to the actual mean of the population. You can use this standard deviation calculator app for to generate absolute outputs. Calculate Standard Deviation of A Set of Values: The SD is calculator on the basis of the following terms: Count of Values: It is the number of the values in the data set. Total Sum of Values: Summation represents the addition of all the values that are given in the data set Standard Mean: It refers to the average of all the values in the set of values. Use this mean and standard deviation calculator to find the mean instantly. Variance: The actual dispersion of data from the mean position is called variance. You can work for the variance with the help of this variance calculator. Coefficient of Variance: The amplitude of the data dispersion about the mean is known as coefficient of variance. Standard Error of Mean: The approximate deviation of the population from mean is known as standard error of mean. This standard error calculator helps you to estimate the actual error of mean precisely. SD helps you in performing various statistical calculations with larger data sets. Now there’s no need to stick with daunting statistical formulas to proceed with SD calculation as our variance and standard deviation calculator does all in a few clicks. Apart from the formulas that are difficult to remember, it is a better practice to use this app for absolutely. How Does It Work? This mean absolute deviation calculator app determines the following terms: Standard Deviation Count of Values Total Sum of Values Mean of The Values Variance Coefficient of Variance Standard Error of Mean (SE) Other Features Includes: User-Friendly Interface An easy to use keyboard with a particular key to enter repetition of same number with one single tap Versatile input box that enlarges as you write data point values Most accurate statistical results The standard deviation tells you how wide and curved the graph will be. If you know the above mentioned terms, you have everything that you need in actual for determining standard deviation. Also for the sake of you people, standard deviation calculator is designed to find accurate output corresponding to the terms defined. Hope it will help you for sure. Privacy Policy: https://calculator-online.net/privacy-policy/ Terms of Service: https://calculator-online.net/terms-of-service/

About

Izzy Statistics Pro

Features
Read full description

The most complete statistical tool without advertising. With an intuitive and simple interface that will facilitate your statistical calculations wherever you are. It doesn't matter if you are a student or a professional, it is just as functional. Enter the numbers of a sample or a population separated by a space, select if the data belongs to a sample or a population, touch the calculate button and you will obtain the result of the following equations: - Ordered numbers - Total numbers - Arithmetic Mean - Median - Mode - Quartiles - Interquartile range - Range - Average deviation - Variance - Standard Deviation - Coefficient of Variation - Typical Values - Atypical Values - Extreme Atypical Values You can also create, share and get the histogram properties of the data: - Histogram - Lowest and highest data - Distribution Range - Total numbers - Classes Number - Classes Range - Classes Besides you can: - Save the data for future use and not have to enter it every time you need it - Update the data in case you need to add, modify or delete any - Delete the data when you think you no longer need it Do not forget to leave your comment and rating, as well as share the app with your friends. This helps us a lot as we can reach more people. For any question, suggestion, doubt or to report an error, send us an email. We are constantly growing to offer you the best possible app and experience.

Screenshots

Calculate Standard Deviation4 screens
Izzy Statistics Pro4 screens

Verdict

The call

The clearest difference is price: Calculate Standard Deviation at Free against Izzy Statistics Pro's $3.99. Izzy Statistics Pro's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Calculate Standard Deviation is free to download; Izzy Statistics Pro costs $3.99 up front. Calculate Standard Deviation sells 1 one-off in-app purchase. Izzy Statistics Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Calculate Standard Deviation ships an update every 7 months, Izzy Statistics Pro every 4 months. Both last shipped on November 3, 2026.

Scorecard4 real differences · 6 level
Calculate Standard Deviation versus Izzy Statistics Pro: the parameters behind the verdict, then further details
ParameterCalculate Standard DeviationIzzy Statistics Pro
PriceFree — better$3.99
Rating4.5 (62 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings62 — better—
Update frequencyEvery 7 monthsEvery 4 months — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.011.0 — better
Further details — not scored
Size39 MB22 MB
Age rating4+4+
DeveloperAsad AhsanBryan Oswaldo Gomez Perez

In-app purchases

1 purchases

Calculate Standard Deviation

One-time1
  • Standard Deviation Premium$4.99
None

Izzy Statistics Pro

No in-app purchases

Questions

Is Calculate Standard Deviation free?
Calculate Standard Deviation is free to download, with in-app purchases available.
Is Izzy Statistics Pro free?
Izzy Statistics Pro costs $3.99, with no in-app purchases.
Do Calculate Standard Deviation or Izzy Statistics Pro have ads?
Calculate Standard Deviation shows ads; Izzy Statistics Pro does not.
Which is updated more often, Calculate Standard Deviation or Izzy Statistics Pro?
Calculate Standard Deviation ships an update every 7 months, and Izzy Statistics Pro every 4 months. Most recently, Calculate Standard Deviation was updated on November 3, 2026 and Izzy Statistics Pro on November 3, 2026.

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