Mean vs Standard Deviation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mean
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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.
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
Verdict
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
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.
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.
| Parameter | Mean | Standard Deviation |
|---|---|---|
| Price | $1.99 | Free — better |
| Update frequency | Every 56 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.2 — better | 13.0 |
| Further details — not scored | ||
| Size | 1 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Ajay Gorasiya | Ahmad Sattar |
In-app purchases
Mean
No in-app purchases
Standard Deviation
No in-app purchases
Questions
Is Mean free?
Is Standard Deviation free?
Do Mean or Standard Deviation have ads?
Which is updated more often, Mean or Standard Deviation?
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