Comparison

Mean vs Standard Deviation

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

Head to head
About

Mean

Features
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Mean Statistics Calculation application which provides you to solve your statistics related problems.It provides many statistics terms for the calculation with given values like Mean, Mode, Median, Range & Data Set. Handy little tool for calculating mean, median and mode, simple to use with a nice, clean user interface. Does the job perfectly. This very useful calculator to save calculation time.

About

Standard Deviation

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SD calculator is an iOS application developed for the calculation of standard deviation problems. It includes entering data values and selecting the type of standard deviation i.e. sample or population. Features of standard deviation calculator Design The design of this application is unique and its style and theme are attractive. This app is designed to top all the other apps out there in the design department. Input field The input field is easy to use to enter data and get the result. Simply, add the comma-separated values and choose the type of standard deviation. Multiple options There are multiple options available in this application as you can get the mean, sample standard deviation, population standard deviation, deviation (difference of data values from the mean), square of deviation, sample variance, and population variance. Results The step-by-step solution will be provided just after hitting the calculate button for the sample and population data. This will help you to ease up the lengthy and time-consuming calculation in a fraction of a second. How to use a standard deviation calculator? This application is easy to use, but just in case you need a guide, here it is. • First of all, enter the comma-separated values into the input box. • Select the type of the standard deviation i.e. sample or population. • Press the calculate button. • The step-by-step result will show just after pressing the calculate button • Hit the reset button to enter new data.

Screenshots

Mean3 screens
Standard Deviation4 screens

Verdict

The call

The clearest difference is price: Standard Deviation at Free against Mean's $1.99. Standard Deviation also leads on update cadence (every 2 months vs every 56 months). On ads, in-app purchases, device support and iOS requirement 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

Standard Deviation is free to download; Mean costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Mean ships an update every 56 months, Standard Deviation every 2 months. The most recent releases landed on September 3, 2026 and September 12, 2026 respectively.

Scorecard2 real differences · 4 level
Mean versus Standard Deviation: the parameters behind the verdict, then further details
ParameterMeanStandard Deviation
Price$1.99Free — better
Update frequencyEvery 56 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS12.2 — better13.0
Further details — not scored
Size1 MB21 MB
Age rating4+4+
DeveloperAjay GorasiyaAhmad Sattar

In-app purchases

None

Mean

No in-app purchases

None

Standard Deviation

No in-app purchases

Questions

Is Mean free?
Mean costs $1.99, with no in-app purchases.
Is Standard Deviation free?
Standard Deviation is free to download, with no in-app purchases.
Do Mean or Standard Deviation have ads?
Neither Mean nor Standard Deviation shows ads.
Which is updated more often, Mean or Standard Deviation?
Mean ships an update every 56 months, and Standard Deviation every 2 months. Most recently, Mean was updated on September 3, 2026 and Standard Deviation on September 12, 2026.

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