Line-Fit

Line-Fit

Straight Line Regression Fit

3 ratings
1 review
Free

Details

  • Released
  • Updated
  • June 15, 2019
  • February 9, 2026

Features

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About

This app models the relationship between two variables using linear regression. It fits a linear equation to observed data, calculating the slope, intercept, correlation coefficient, and coefficient of determination to assess the model's fit.

Linear regression modeling
Calculate slope and intercept
Correlation coefficient calculation
Coefficient of determination (R2)
Model fit assessment
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What's New in Line

3.0

February 9, 2026

Updated with Xcode 26.

User reviews

Probably doesn’t work

I got this app because my school calculator broke and this is absolutely horrendous every time you enter the app it starts off with a new randomly generated line which wouldn’t be that bad if there was an option to clear but there isn’t so you either have to edit it and delete each individual coordinate before writing in a new one or just delete all the coordinates you can then try to work with their system and even after typing in all the correct coordinates it doesn’t show the coordinates in the correct place
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Developer apps

FAQ

What is Line-Fit used for?

Line-Fit is used to model the relationship between two variables using linear regression. It helps you understand how one variable changes in relation to another and assesses the strength and accuracy of that relationship.

What are the key calculations performed by Line-Fit?

Line-Fit calculates the slope and intercept of the regression line, the correlation coefficient to measure association strength, and the coefficient of determination (R2) to indicate how well the model fits the data.

What devices does Line-Fit support?

Line-Fit is available for iPhone, iPad, and iPod devices, making it accessible for users on Apple's mobile ecosystem.

How often is Line-Fit updated?

The latest version of Line-Fit is 3.0, and it was last updated on February 9, 2026. This indicates a recent update, suggesting ongoing development and support.

What is the age rating for Line-Fit?

Line-Fit has an age rating of 12+, meaning it is considered appropriate for users aged 12 and older.

Does Line-Fit have ads?

No, Line-Fit does not contain advertisements. As a free application, it provides an ad-free experience for its users.

What is the user sentiment for Line-Fit based on its rating?

Line-Fit has a rating of 3.7 stars from 3 ratings. This suggests a generally positive but not overwhelmingly enthusiastic user reception.

Can Line-Fit be used for complex statistical analysis?

Line-Fit focuses specifically on linear regression for two variables. For more complex statistical analyses involving multiple variables or advanced techniques, users might need to explore more comprehensive statistical software.