Quick Correlation Coefficients vs Calculate Standard Deviation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quick Correlation Coefficients
This app calculates the correlation coefficient between two or three sets of numerical data. It offers flexible data entry methods, including a slider and keypad, and handles missing values to compute relationships accurately.
- Calculate correlation coefficient (rho)
- Relate two or three data sets
- Slider data entry
- Keypad data entry
- Handles missing data (n/a)
- Minimum 3 data pairs required
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The correlation coefficient (commonly noted by the Greek letter rho, ρ) measures the degree to which two sets of numbers are related. The correlation coefficient can range from -1.000 to +1.000 with a 0 indicating that there is no relation between the two sets. A 'slider' data entry option allows rapid creation of numerical data. Additionally, you may use the 'keypad' data entry option to expand the numerical range beyond plus or minus 1,000. In this application, you may relate two or three sets of numbers and the correlations between the sets are shown as ρ(AB), ρ(AC), and ρ(BC), where the letters A, B, and C represent the columns. There must be at least 3 pairs of numbers in any 2 rows for the correlation coefficient to be computed. Zero is a number but 'n/a' is not. If, for example, Column A has 5 rows of numbers and the 6th row is 'n/a' and Column B has 4 rows of numbers and the 5th row is 'n/a', the correlation coefficient, ρ(AB), will be computed for the first 4 pairs of numbers.
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.
- Calculate Standard Deviation
- Calculate Variance
- Calculate Mean
- Calculate Coefficient of Variance
- Calculate Standard Error of Mean
- User-friendly interface
- Accurate statistical results
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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/
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Verdict
The clearest difference is review sentiment: Calculate Standard Deviation at 50% against Quick Correlation Coefficients's 0%. Calculate Standard Deviation also leads on rating (4.5 vs 1.0) and ratings volume (62 vs 1). Quick Correlation Coefficients's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, 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
Both are free to download. Calculate Standard Deviation sells 1 one-off in-app purchase. Quick Correlation Coefficients asks for nothing beyond the download.
Calculate Standard Deviation holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Calculate Standard Deviation has 62 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Quick Correlation Coefficients's written reviews are positive against 50% of Calculate Standard Deviation's.
Quick Correlation Coefficients ships an update every 4 months, Calculate Standard Deviation every 7 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Quick Correlation Coefficients | Calculate Standard Deviation |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.5 (62 ratings) — better |
| Positive reviews | 0.0% of reviews | 50.0% of reviews — better |
| Number of ratings | 1 | 62 — better |
| Update frequency | Every 4 months — better | Every 7 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | MSYapps | Asad Ahsan |
Customer experience
Quick Correlation Coefficients
Calculate Standard Deviation
In-app purchases
Quick Correlation Coefficients
No in-app purchases
Calculate Standard Deviation
- Standard Deviation Premium$4.99
Questions
Is Quick Correlation Coefficients free?
Is Calculate Standard Deviation free?
Which has better reviews, Quick Correlation Coefficients or Calculate Standard Deviation?
Do Quick Correlation Coefficients or Calculate Standard Deviation have ads?
Which is updated more often, Quick Correlation Coefficients or Calculate Standard Deviation?
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