Comparison

Simple Stat vs Calculate Standard Deviation

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

Head to head
About

Simple Stat

This app provides essential statistical tests for first-year university students. It offers a user-friendly interface for common calculations like Z-tests and T-tests. Designed for ease of use in introductory statistics courses.

Highlights
  • Z-test for mean
  • Z-test for proportion
  • T-test
  • Two sample t-test
  • Paired t-test
  • Easy to use interface
Features
Read full description

Simple Stat is an application that can perform statistics tests which are commonly used in first year university statistics course. Simple Stat is very easy to use, and suits first year statistics students very well. The statistics tests that are included in Simple Stat are: - Z-test for mean - Z-test for proportion - T-test - Two sample t-test - Paired t-test

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/

Screenshots

Simple Stat4 screens
Calculate Standard Deviation4 screens

Verdict

The call

The clearest difference is rating: Calculate Standard Deviation at 4.5 against Simple Stat's 2.5. Calculate Standard Deviation also leads on ratings volume (62 vs 4). Simple Stat's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, review sentiment, 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

Both are free to download. Calculate Standard Deviation sells 1 one-off in-app purchase. Simple Stat asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calculate Standard Deviation holds the better App Store score, 4.5 against 2.5. That said, the two scores are not equally well evidenced: Calculate Standard Deviation has 62 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 56% of Simple Stat's written reviews are positive against 50% of Calculate Standard Deviation's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Simple Stat ships an update every 12 months, Calculate Standard Deviation every 7 months. The most recent releases landed on September 29, 2026 and October 20, 2026 respectively.

Scorecard6 real differences · 4 level
Simple Stat versus Calculate Standard Deviation: the parameters behind the verdict, then further details
ParameterSimple StatCalculate Standard Deviation
PriceFreeFree
Rating2.5 (4 ratings)4.5 (62 ratings) — better
Positive reviews55.6% of reviews — better50.0% of reviews
Number of ratings462 — better
Update frequencyEvery 12 monthsEvery 7 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better15.0
Further details — not scored
Size1 MB39 MB
Age rating4+4+
DeveloperEnrico SusatyoAsad Ahsan

Customer experience

Simple Stat

All ratings4 ratings
Positive25.0%
Neutral25.0%
Negative50.0%
Written reviews9 reviews
Positive55.6%
Neutral11.1%
Negative33.3%

Calculate Standard Deviation

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

In-app purchases

None

Simple Stat

No in-app purchases

1 purchases

Calculate Standard Deviation

One-time1
  • Standard Deviation Premium$4.99

Questions

Is Simple Stat free?
Simple Stat is free to download, with no in-app purchases.
Is Calculate Standard Deviation free?
Calculate Standard Deviation is free to download, with in-app purchases available.
Which has better reviews, Simple Stat or Calculate Standard Deviation?
Calculate Standard Deviation is rated higher. Simple Stat averages 2.5 out of 5 from 4 ratings, while Calculate Standard Deviation averages 4.5 from 62 ratings.
Do Simple Stat or Calculate Standard Deviation have ads?
Calculate Standard Deviation shows ads; Simple Stat does not.
Which is updated more often, Simple Stat or Calculate Standard Deviation?
Simple Stat ships an update every 12 months, and Calculate Standard Deviation every 7 months. Most recently, Simple Stat was updated on September 29, 2026 and Calculate Standard Deviation on October 20, 2026.

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