Function Fitter
Utilities
Free · Designed for iPad. Not verified for macOS.
Function curve fitting using custom function that you enter. Reads data values either from file or manual entry, and tries to fit your function to the data by adjusting 1 to 4 parameters for a least-squares best fit. For enjoyment only, NOT for serious data needs.
This is minimalist by design with no ads, no in-app purchases, no bells and whistles, and no fancy moving graphics to distract you, just fun.
Note: Entertainment value only, fun using different parameter starting values.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- UI improvements.
- Changed the Chart screen “Cancel” button to “Stop Fit” in red.
- Changed the Chart screen “final” label to "result" until a final fitted result is obtained (i.e. not stopped).
The developer, 29Apps LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 29Apps LLC
- Size
- 3.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Copyright 2025-2026 29Apps LLC, All rights reserved