Curve-Fit
Curve Fitting by Least Squares
About
This app performs regression analysis using the method of least squares to fit various equations to your data. The free version offers straight-line fitting, with additional equation types available via an in-app purchase. It's designed for users needing to analyze and model data sets.
What's New in Curve
7.0
February 9, 2026
Updated with Xcode 26.
In-App Purchases
$2.99
Curve-Fit
Linear Least Squares Regression Curve Fitting
Developer apps
FAQ
What equations can Curve-Fit fit to data?
Curve-Fit offers straight-line fitting for free. An in-app purchase unlocks additional equation types including Power Curve, Exponential I & II, Hyperbolic, Square Root, Polynomial, Exponential Poly, Natural Log, and Reciprocal.
How does Curve-Fit perform curve fitting?
Curve-Fit uses regression analysis by the method of least squares. This technique finds the best fit for a set of data to a selected equation by minimizing the sum of the squares of the differences between measured and predicted values.
What is the price of Curve-Fit?
The base app is free. An in-app purchase is required to unlock advanced curve fitting equation options. The app is priced at $0.99.
What devices does Curve-Fit support?
Curve-Fit is available for iPhone and iPad devices.
How often is Curve-Fit updated?
The latest version is 7.0, last updated on February 9, 2026. This indicates a recent update, suggesting ongoing support and development.
What is the age rating for Curve-Fit?
Curve-Fit has an age rating of 12+, making it suitable for a teenage audience and older.
What do users like about Curve-Fit?
Based on the provided rating, users highly value Curve-Fit, as evidenced by its 5.0-star rating from 1 review. This suggests a positive user experience with its functionality.
Does Curve-Fit have ads?
No, Curve-Fit does not contain advertisements. The app is ad-free.
