# Art of Stat: Regression — Fit Linear Regression Model

> Statistical regression analysis tool for scatterplots and model fitting. (iPhone/iPad app by Bernhard Klingenberg.)

- Source: https://appshunter.io/ios/app/art-of-stat-regression/id1613497223 (this page in markdown: same URL + `.md`)
- Developer: [Bernhard Klingenberg](https://appshunter.io/developer/1564877195)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Rating: 4.70/5 from 20 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 33 MB
- Languages: American English
- Released: 2022-03-17
- Data updated: 2026-07-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/art-of-stat-regression/id1613497223/reviews.md

## What is Art of Stat?

News: The Regression app is now part of the all new "Art of Stat" app, which contains the Regression and seven other modules.

Please consider getting the Art of Stat app for the latest updates and features from the App Store. Simply search for "Art of Stat" on the App Store. This app will continue to work, but future development is concentrated on the new Art of Stat app.

Original Description:
The Art of Stat: Regression app creates scatterplots, fits linear, logistic, Poisson or exponential regression models, and displays inference for model parameters (standard errors, confidence intervals, P-values). 

The app now also fits multiple linear and logistic regression models and allows including categorical predictors and two-way interactions!

The app computes and displays confidence intervals for the mean response and prediction intervals for a future response. The fitted model and the intervals are visualized on the scatterplot, and you can obtain and plot raw and standardized residuals.

You can color points on the scatterplot according to a third quantitative or categorical variable to reveal additional patterns.

For data entry, you can enter your own data via the new Data Editor app, import a CSV file, or choose from several pre-loaded example datasets.

Features:

- Scatterplot Matrix to study pairwise relationships

- Display the fitted regression equation on the scatterplot, even when including (and additional) categorical predictor

- Table with all regression coefficients and their inferences (P-values, confidence intervals)

- Summary statistics such has R^2, R^2-adjusted and maximized Log-Likelihood

- Fitted values and (standardized) residuals (which you can download)

- Predictions for your own values of the explanatory variables

- Residual plot to check assumptions and for outliers

## Key features

- Scatterplots and regression model fitting
- Inference for model parameters
- Multiple linear and logistic regression
- Confidence and prediction intervals
- Categorical predictors and interactions
- Residual analysis
- Data import and example datasets

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Linear Regression | $0.99 | one-time |
| Exponential Regression | $0.99 | one-time |
| Logistic Regression | $0.99 | one-time |
| Multiple Linear Regression | $1.99 | one-time |
| Unlock All Content & Save | $3.99 | one-time |


## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/art-of-stat-regression/id1613497223/reviews.md

### 5/5 — Intuitive!

*2025-02-13*

I like doing a Regression via mobile.

### 5/5 — Fantastic App

*2024-06-18, version 1.8.0*

Still kind of a hustle to import data, but nevertheless it works (up to certain amount) correctly + good interface.
Totally recommend

### 5/5 — Excellent app, and simple to use!

*2023-05-28*

Only request is that the developer adds feature that lets iPad version display in portrait mode (like most of the other Art of Stat apps do)

**Developer response:** Thank you for the feedback. The latest version better supports tablets in portrait or landscape view.

### 5/5 — Nice and easy

*2023-03-24*

Easy to fit regression model and focus on interpreting the output. Lots of plots and features. Take a screenshot and share.

### 5/5 — Easy to use interface

*2023-03-03*

This is a very comprehensive app with important output well organized in tables and great plots. Easy to make a screenshot and share with others. This is so much better than having to use R.

### 3/5 — NO WAY TO IMPORT DATA INTO THE APP FOR USAGE. TEDIOUS TO INPUT DATA MANUALLY

*2022-09-30, version 1.2.0*

It’s a good App and it works very delightfully. I like the visualisations. You put a great work into that. But one thing though, “the loading of data” you have to input the data manually and it become pretty tedious and boring and impossible to do if there is a lot of the data. Now I am not sure if there is a way to import data from your device into the app without having to input it manually but if there isn’t any then I suggest you provide it to make it super awesome. Cheers.

## Frequently asked questions about Art of Stat

### What types of regression models can Art of Stat handle?

Art of Stat can fit linear, logistic, Poisson, and exponential regression models. It also supports multiple linear and logistic regression, including categorical predictors and two-way interactions.

### How does Art of Stat help visualize regression results?

The app creates scatterplots that display the fitted regression equation, confidence intervals for the mean response, and prediction intervals for future responses. You can also plot raw and standardized residuals.

### What are the data input options for Art of Stat?

You can enter your own data using the Data Editor app, import data from a CSV file, or use several pre-loaded example datasets provided within the application.

### Can I use Art of Stat offline?

The provided data does not specify offline capabilities. However, as a statistical analysis tool, it is likely designed to function without a constant internet connection once the app is installed.

### What is the update frequency for Art of Stat?

The app was last updated on February 6, 2026, indicating a recent update. However, future development is concentrated on the new 'Art of Stat' app.

### What is the age rating for Art of Stat?

Art of Stat has an age rating of 4+, making it suitable for a wide range of users, including younger learners interested in data analysis.

### Does Art of Stat have ads?

No, Art of Stat does not contain advertisements. The app is free to download and use without any ad interruptions.

### How does Art of Stat compare to other regression apps?

Art of Stat offers a comprehensive suite of regression analysis tools, including advanced features like multiple regression with categorical predictors and detailed residual analysis, all within a user-friendly interface.

## Version history (last 5 releases)

### 3.0.0 — 2026-02-06

- Legacy Version: Continuous to work, but I recommend upgrading to the new "Art of Stat" app, which contains Regression and 7 other modules.
- Search for "Art of Stat" in the App Store.
- Multiple Logistic Regression

### 2.0.0 — 2025-07-31

- Machine Learning: Linear Discriminant Analysis
Visualize decision boundaries and prediction areas.

### 1.9.0 — 2024-08-14

- Landscape mode for tablets
- Improved Multiple Linear Regression interface and plots

### 1.8.0 — 2024-05-30

- Now also works great on tablets and in landscape mode
- Improved Multiple Linear Regression interface and plots

### 1.5.0 — 2023-04-19

- Multiple Linear Regression
- Quantitative and Categorical Predictors
- Data Editor
- Scatterplot Matrix

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## More apps by Bernhard Klingenberg

- [Art of Stat: Distributions](https://appshunter.io/ios/app/art-of-stat-distributions/id1564877193)
- [Art of Stat: Inference](https://appshunter.io/ios/app/art-of-stat-inference/id1578438712)
- [Art of Stat: Explore Data](https://appshunter.io/ios/app/art-of-stat-explore-data/id1599474757)
- [Art of Stat: Concepts](https://appshunter.io/ios/app/art-of-stat-concepts/id6444956478)
- [Art of Stat: Resampling](https://appshunter.io/ios/app/art-of-stat-resampling/id6448982230)

All apps by Bernhard Klingenberg: https://appshunter.io/developer/1564877195

## Related topics

[regression](https://appshunter.io/ios/topics/regression) · [regression analysis](https://appshunter.io/ios/topics/regression-analysis) · [linear regression lab](https://appshunter.io/ios/topics/linear-regression-lab) · [linear regression equation](https://appshunter.io/ios/topics/linear-regression-equation)

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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 2026-07-05.*