---
title: "Function Fitter - Reviews, Revenue and Downloads in Canada | Apple App Store"
description: "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-s"
---

# Function Fitter — Canada

![Function Fitter App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/fc/95/8e/fc958ee5-4ae4-7b86-66a4-36c2764bf4db/AppIcon-1x_U007epad-0-1-85-220-0.png/434x0w.png)

**Developer:** [29Apps](https://apptail.io/developer/29apps-JWWdS)
**Category:** Utilities
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** com.29apps.FunctionFitter
**Store:** Apple App Store
**Country:** Canada
**Version:** 2.2.2 (released 2026-09-03)
**Original Release:** 2025-07-08
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/ca/app/app/id6748284369)
**AppTail Page:** [https://apptail.io/app/function-fitter-mwPw/canada](https://apptail.io/app/function-fitter-mwPw/canada)

## Function Fitter Description
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.

## Function Fitter Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/11/1a/ba/111abadd-a5a5-30eb-8cf5-c42ed535ae35/iPhone_Function_Fitter_home_screen_2.1.0__U002830_U0029.png/1320x2868.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f4/67/2b/f4672bf9-49cf-49f2-c4e1-6508890429b5/iPhone_Function_Fitter_function_screen.png/1290x2796.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d8/68/93/d868930c-eace-e5df-296a-b0d92060e8c7/iPhone_Function_Fitter_data_screen_2.2.0__U002836_U0029.png/1290x2796.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f6/2f/6e/f62f6e82-3fe1-d072-7eb6-0e8498f96c84/iPhone_Function_Fitter_chart_screen_2.2.0__U002836_U0029.png/1290x2796.png)







## Function Fitter Available In
- [Canada](https://apptail.io/app/function-fitter-mwPw/canada)
- [United States](https://apptail.io/app/function-fitter-mwPw/united-states)

---

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