# Stats tester plus — Calculator for statistics test

> Statistical testing calculator for parametric and nonparametric analyses. (iPhone/iPad app by Hideki Ono.)

- Source: https://appshunter.io/ios/app/stats-tester-plus/id1604531508 (this page in markdown: same URL + `.md`)
- Developer: [Hideki Ono](https://appshunter.io/developer/1401085377)
- Category: Education, Productivity
- Price: $3.99 (on sale, was $4.99)
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 5 MB
- Languages: American English
- Released: 2023-01-19
- Data updated: 2026-08-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/stats-tester-plus/id1604531508/reviews.md

## What is Stats tester plus?

### Features of this statistics app ###
1. By using Stats tester plus, you can perform some parametric and nonparametric statistics tests with an easy operation. 
2. Since one sample group (multiple data) is entered in one window, it is easy to enter, add, and modify many data.
3. For tests with multiple input windows, 100 data can be entered for each input window. For tests such as chi-square test (2X2, mXn) and Fisher exact test (2X2), you can enter up to frequency of 100,000,000
4. A built-in 10-keypad in a phone or calculator layout makes data entry easy. Standard iPhone and Mac keyboards are also available, and these can be switched to a 10-keypad at any time.
5. Unlike the Mini version, Stats tester plus allows one-sided tests to be performed following two-sided tests for some tests. In addition, for tests that perform continuity correction, it is also possible to display the test results without continuity correction.
6. Input data and all output screen can be recorded by sharing (mail, memo). No need to take notes on paper.
7. Data can be imported into the input window from apps such as  Excel and Numbers by copy/paste, although it takes a little time. When you have an M1~3 Mac, you can simply copy/paste Numbers data into the input window of this app.
8. You can check the usability of this app with Stats tester mini (free version). Stats tester mini has fewer tests than Stats tester plus and does not support one-tailed tests, but its usability is the same as Stats tester plus. Please download Stats tester mini and check the usability of this Plus version of Stats tester.

## how to use ##
Each test screen has [Help], [Example], [Graph], [Calc], [Clear] and [Share] buttons.
You can check the usage details in the free version of Stats tester mini.

## Statistics methods ##
Currently, 27 methods are available.

A. Basic Statistics (Mean,SD,Median, etc)   [Graph]
   1. Mean, SD, Skewness, Kurtosis, etc.
       ( Means (Arithmetic, Geometric and Harmonic), Standard Deviation、Standard Error、Confidence interval (CI, 95 and 99%), Variance, Unbiased variance, Coefficient of variation (%CV), Skewness, Kurtosis)
   2. Median, Range, Quartiles and Boxplot   [Graph]
       (Median, Maximum, Minimum, Quartiles, Quartile Deviation, Boxplot)
       
B. Test for Mean,Variance,etc. (Parametric)
   1. One-Sample t-Test (to Compared Mean)   [Graph]
   2. Two-Sample t-Test (Student's and Welch's t-Tests)   [Graph]
   3. Paired t-Test (Paired Sample)   [Graph]
   4. F-Test of Variance for Two Samples   [Graph]
   5. Levene Test of Variance for Multiple Samples   [Graph]
   6. One-Way Analysis of Variance (ANOVA)   [Graph]
   7. Multiple t-Test with Bonferroni Correction   [Graph]

C. Test for Median, etc. (Nonparametric)
   1. Mann-Whitney U Test (Two Samples)   [Graph]
   2. Median Test (Two Samples)   [Graph]
   3. Wilcoxon Signed Rank Test (Paired Sample)   [Graph]
   4. Kruskal-Wallis Test & Multiple Comparisons (by Bonferroni Correction)  [Graph]

D. Test for Proportion
   1. Sign Test (Paired Sample)   [Graph]
   2. Binomial Test [Exact Method] (One-Sample Proportion Test)
   3. Binomial Test [Approx Method] (One-Sample Proportion Test)
   4. Two-Sample Proportion Test [Approx. Method]

E. Test for Frequency
   1. Chi-Square Test (Goodness of Fit)   [Graph]
   2. Chi-Square Test (2x2, Independence)
   3. Chi-Square Test (mxn, Independence)
   4. McNemar's Test (Chi-Square Test for Paired Sample)
   5. Fisher's Exact Test (2x2)

F. Test for Correlation
   1. Linear Regression and Test for Pearson Correlation Coefficient   [Graph]
   2. Test for Differences in Correlation Coefficients (One Sample)
   3. Test for Differences in Correlation Coefficients (Two Samples)
   4. Spearman Rank Correlation Test   [Graph]

G. Other (Normality Test)
   1. Shapiro-Wilk Test (Normality) and Q-Q Plot   [Graph]

## Key features

- Parametric and nonparametric statistical tests
- Easy data entry and modification
- Support for large datasets
- Data import from Excel/Numbers
- One-sided and two-sided tests
- Continuity correction options
- Shareable results

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/stats-tester-plus/id1604531508/reviews.md

### 4/5 — 各検定結果を日本語に対応して欲しい

*2024-09-29*

説明等は日本語に対応していますが、結果の方が全て英語で、英語が出来る方は良いのでしょうが自分の様に日本語以外難しい場合、一々翻訳機に掛けないと全く読めないので...

**Developer response:** このアプリは日本以外も対象にしたので、英語表示を基本としました。iPhoneを日本語以外の言語に設定していると全てが英語で表示されます。日本語に設定すると計算出力結果のみは英語で表示し（他の部分は日本語表示）、それぞれの検定のHELP画面の『⚫️ 以下は出力例です』の項目に、計算出力例を日本語で補足説明しています。ご不便をおかけしますが、HELP画面を参考にしていただきたいと思います。

## Frequently asked questions about Stats tester plus

### What statistical tests can Stats tester plus perform?

Stats tester plus offers 27 statistical methods, including basic statistics, parametric tests like t-tests and ANOVA, and nonparametric tests such as Mann-Whitney U and Kruskal-Wallis.

### How does Stats tester plus handle data entry?

Data entry is made easy with a built-in 10-keypad and support for standard iPhone/Mac keyboards. You can enter up to 100 data points per window for most tests, and significantly more for specific tests like chi-square.

### Can I import data into Stats tester plus?

Yes, you can import data by copy-pasting from applications like Excel and Numbers. This feature is particularly seamless for Numbers data on M1~3 Macs.

### Does Stats tester plus support one-sided tests?

Yes, unlike the free version, Stats tester plus allows for one-sided tests in addition to two-sided tests for certain analyses.

### How can I share my results from Stats tester plus?

All input data and output screens can be recorded and shared via email or memo, eliminating the need for manual note-taking.

### What is the price of Stats tester plus?

Stats tester plus is a paid application priced at $3.99.

### Is Stats tester plus available on other platforms?

Based on the provided data, Stats tester plus is available on iPhone and iPod. There is also a free version, Stats tester mini, to test usability.

### How often is Stats tester plus updated?

The app was last updated on 2025-08-13, indicating recent development and support.

## Version history (last 5 releases)

### 3.6 — 2025-08-13

1. Sign test (Paired Sample) and Two-sample proportion test: Corrected p-value error in one-sided tests.
2. Some minor modifications.

### 3.5 — 2024-11-03

1. An [option] button has been installed on each test screen. This makes it easy to switch between two-sided and one-sided tests, and to switch continuity correction ON and OFF.
2. F-test of variance ratio, Mann-Whitney U-test : In one-tailed tests, the right-sided p-value and the left-sided p-value were sometimes swapped. These have been corrected.
3. Mood Median test, One-sample correlation test and Two-sample correlation test :  The results of the one-sided test could not be fully verified. Therefore, one-sided testing of these tests was discontinued.

### 3.4 — 2024-10-05

Shapiro-Wilk test (Normality test) : Added explanation about p-value interpretation to Help.

### 3.3 — 2024-09-18

1. The status of the switching screen for  [2-sided test/1-sided test] and [Continuity correction ON/OFF]  are now easier to visually check. This change makes the setting status easier to understand compared to the previous version. Furthermore, the status of the setting option is highlighted at the top of the output screen after tapping the Calc button.
2. When you tap the HELP button for each test, "Explanation of each test" and "Example output screen" are displayed in succession. In previous versions, these boundaries were difficult to distinguish. This revision has made the boundaries more clear.
3. Others
1) Paired t-test: Corrected input data display disorder.
2) Shapiro test (normality test): Added explanations for the x-axis (observed value) and y-axis (expected value) to the Q-Q plot graph.

### 3.2.1 — 2024-06-04

Ver 3.2.1
Wilcoxon signed rank test: Fixed a bug when test statistic (Ro) = critical value (R).
Ver 3.2
1. Bonferroni multiple t-test, Kruskal-Wallis test : The screen display of the results was improved.
2. Spearman rank correlation test, Wilcoxon signed rank test: Although the final p-value was correct, the intermediate results were sometimes displayed differently. So this issue was corrected.
3. X2 test (Goodness of fit) : Added explanation to the result and graph.
4. Others: Minor improvements were made to the screen display.

## More apps by Hideki Ono

- [Stats tester mini](https://appshunter.io/ios/app/stats-tester-mini/id1445990637)

All apps by Hideki Ono: https://appshunter.io/developer/1401085377

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-01.*