
Free
About
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.
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What's New in Function Fitter
2.2.1
July 28, 2026
- The Feedback screen subject and message fields must be non-blank after trimming whitespace. - Minor UI improvements.



