Scientific Calculator++ vs Standard Deviation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scientific Calculator++
This powerful calculator app offers advanced functions for complex calculations, including fraction manipulation, angle conversions, and equation solving. It features a history of your calculations and a user-friendly interface designed for iPad.
- Calculation history
- Fraction manipulation
- Angle conversion (degrees, minutes, seconds)
- Permutation and combination calculations
- LCM and GCD
- Equation solver
- Coordinate conversion
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The creators of 5-star Scientific++ and Statistics Calculator++ redesigned Scientific Calculator++ exclusively for iPad. Please note that the statistics features that you see in the screen shots are only available through an In-App Purchase. The features that are listed below are all included in the regular purchase of the app. Major features of Scientific Calculator++ are: - Shows the expression as you enter and keeps a history of your calculations. - Capability of performing fraction manipulations and converting between different formats (proper, improper, and mixed fractions) and seamless integration of fraction, integer, and decimal manipulations. - Capability of inputting degrees, minutes, and seconds for angles and converting between degrees-minutes-seconds format and decimal format. - Capability of calculating permutation, combination, Least Common Multiple (LCM), Greatest Common Divisor (GCD), and prime factorization. - Quadratic and system of two linear equations solver. - Rectangular to polar and polar to rectangular coordinate conversion (extremely useful for phasor calculations for electrical engineers) - Common physical constants can be chosen from a list and used in the calculations. - Throws a set of dice (choice of 1 die to 4 dice) - Backspace to delete last digit entered. - Sinusoidal functions can be calculated for angles in units of degrees, radians, or gradians. - Showing the content of memory on MR button, as long as it fits. You are going to love the simplicity of the user interface and yet have the powerful functionality with which Scientific Calculator++ is loaded. Please do not hesitate to contact us for any questions, comments, to report any bugs, or to suggest additional functions you would like to see in the upcoming updates. Visit our website www.dogahe.com for other product descriptions.
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 Scientific Calculator++'s $2.99. Standard Deviation also leads on in-app purchases (none vs 2) and update cadence (every 2 months vs every 38 months). On ads 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; Scientific Calculator++ costs $2.99 up front. Scientific Calculator++ sells 2 one-off in-app purchases. Standard Deviation asks for nothing beyond the download.
Scientific Calculator++ ships an update every 38 months, Standard Deviation every 2 months. The most recent releases landed on October 15, 2026 and September 30, 2026 respectively.
| Parameter | Scientific Calculator++ | Standard Deviation |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (21 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 21 — better | — |
| Update frequency | Every 38 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | — |
| Devices | iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 3 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Dogahe | Ahmad Sattar |
In-app purchases
Scientific Calculator++
- List Size Plus$0.99
- Quadratic Plus$0.99
Standard Deviation
No in-app purchases
Questions
Is Scientific Calculator++ free?
Is Standard Deviation free?
Do Scientific Calculator++ or Standard Deviation have ads?
Which is updated more often, Scientific Calculator++ or Standard Deviation?
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