Comparison

Calculate Standard Deviation vs IntroStat

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

IntroStat

This app serves as a comprehensive statistics calculator and learning tool for introductory statistics courses. It offers a wide range of calculation features, data visualization, and an integrated textbook with formulas and examples.

Highlights
  • Summary statistics calculation
  • Data visualization (boxplots, histograms)
  • Probability calculations
  • Hypothesis testing
  • Confidence intervals
  • Integrated statistics textbook
Features
Read full description

IntroStat is a probability and statistics calculator. It is the perfect learning tool for an introductory statistics course. Use it to perform any of your statistics calculation needs. IntroStat also includes a statistics textbook complete with formulas, exercise problems, examples, and more. FREE IN THE CALCULATOR: • Enter & Save Datasets • Generate Summary Statistics • Calculate z-Scores • Draw Boxplots & Histograms • Visualize Key Concepts like The Empirical Formula • Plot Discrete and Continuous Random Variables • Perform Probability Calculations • Conduct Hypothesis Testing • Compute Confidence Intervals • Lookup Critical Values of Distributions • Perform Simple Regression Analysis • ANOVA, Chi-Square, & F-Tests • Introductory Statistics Textbook Upgrade as a Premium User to unlock: • Dark Mode • 12 Color Themes • Zoom • Custom Decimal Precision • Comma Display • No Ads Have any questions? Please reach out to us via email at IntroStatApp@gmail.com. End User Licensing Agreement: https://www.introstatapp.com/user-agreement Privacy Policy: https://www.introstatapp.com/privacy-policy

Screenshots

Calculate Standard Deviation4 screens
IntroStat4 screens

Verdict

The call

The clearest difference is review sentiment: IntroStat at 92% against Calculate Standard Deviation's 50%. IntroStat also leads on rating (4.9 vs 4.5) and update cadence (every 3 months vs every 7 months). On price, ratings volume, ads and in-app purchases 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

Both are free to download. Calculate Standard Deviation sells 1 one-off in-app purchase and IntroStat sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

IntroStat holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 62 and 24 respectively. Written reviews point the same way: 50% of Calculate Standard Deviation's written reviews are positive against 92% of IntroStat's.

UpkeepUpdate frequency

Calculate Standard Deviation ships an update every 7 months, IntroStat every 3 months. The most recent releases landed on September 22, 2026 and September 18, 2026 respectively.

Scorecard4 real differences · 6 level
Calculate Standard Deviation versus IntroStat: the parameters behind the verdict, then further details
ParameterCalculate Standard DeviationIntroStat
PriceFreeFree
Rating4.5 (62 ratings)4.9 (24 ratings) — better
Positive reviews50.0% of reviews92.3% of reviews — better
Number of ratings62 — better24
Update frequencyEvery 7 monthsEvery 3 months — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.011.0 — better
Further details — not scored
Size39 MB38 MB
Age rating4+4+
DeveloperAsad AhsanZhiyi Zhang

Customer experience

Calculate Standard Deviation

All ratings62 ratings
Positive88.7%
Neutral3.2%
Negative8.1%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

IntroStat

All ratings24 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews13 reviews
Positive92.3%
Neutral0.0%
Negative7.7%

In-app purchases

1 purchases

Calculate Standard Deviation

One-time1
  • Standard Deviation Premium$4.99
1 purchases

IntroStat

One-time1
  • IntroStat Premium Features$4.99

Questions

Is Calculate Standard Deviation free?
Calculate Standard Deviation is free to download, with in-app purchases available.
Is IntroStat free?
IntroStat is free to download, with in-app purchases available.
Which has better reviews, Calculate Standard Deviation or IntroStat?
IntroStat is rated higher. Calculate Standard Deviation averages 4.5 out of 5 from 62 ratings, while IntroStat averages 4.9 from 24 ratings.
Do Calculate Standard Deviation or IntroStat have ads?
Both Calculate Standard Deviation and IntroStat show ads.
Which is updated more often, Calculate Standard Deviation or IntroStat?
Calculate Standard Deviation ships an update every 7 months, and IntroStat every 3 months. Most recently, Calculate Standard Deviation was updated on September 22, 2026 and IntroStat on September 18, 2026.

Other comparisons