# PolyFit Pro — Calc polynomial coefficients

> Estimates polynomial coefficients using the Least Squares Method. (iPhone/iPad app by 睿 王.)

- Source: https://appshunter.io/ios/app/polyfit-pro/id1525124272 (this page in markdown: same URL + `.md`)
- Developer: [睿 王](https://appshunter.io/developer/1524187290)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 28 MB
- Languages: English
- Released: 2020-08-14
- Data updated: 2026-06-10
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/polyfit-pro/id1525124272/reviews.md

## What is PolyFit Pro?

PolyFit Pro could efficiently utilize the Least Squares Method to estimate the polynomial coefficients using the input sample points.

## Key features

- Least Squares Method estimation
- Polynomial coefficient calculation
- Input sample points
- Efficient data processing

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| PolyFit Pro Full Version | $1.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/polyfit-pro/id1525124272/reviews.md

### 5/5 — Nice calculator

*2020-12-03, version 1.0.3*

Easy to use

## Frequently asked questions about PolyFit Pro

### What is PolyFit Pro used for?

PolyFit Pro is used to efficiently estimate polynomial coefficients from input sample points using the Least Squares Method. This is helpful for data analysis and modeling.

### How accurate is PolyFit Pro?

PolyFit Pro has a high rating of 5.0 stars from 2 ratings, indicating strong user satisfaction with its performance and accuracy.

### Is PolyFit Pro free to use?

Yes, PolyFit Pro is free to download and use. It may offer in-app purchases for additional features or content.

### What devices does PolyFit Pro support?

PolyFit Pro is available on iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users.

### When was PolyFit Pro last updated?

The latest version of PolyFit Pro was released on November 29, 2020. It was initially released on August 14, 2020.

### What is the age rating for PolyFit Pro?

PolyFit Pro has an age rating of 4+, meaning it is suitable for most users.

### Does PolyFit Pro have ads?

No, PolyFit Pro does not contain advertisements, providing an uninterrupted user experience.

## Version history (last 4 releases)

### 1.0.3 — 2020-11-29

- Make fitted polynomial coefficients and measures of fitting quality copyable
- Add a share button on the drawer menu
- Prompt to rate this app :-)
- Fix bugs in in-app-purchase logic

### 1.0.2 — 2020-11-22

- Add statistic measures of fitting quality: SSE, R-square, Adjusted R-square, and RMSE
- Improve visually the theme colors, styles, and fonts
- Fix the constant item in polynomial formula of y = C not showing

### 1.0.1 — 2020-10-29

- Fix repetitively displayed purchase complete notifications
- Fix unscrollable polynomial/point lists
- Fix unable to input signs & decimal point for coordinates of points

### 1.0.0 — 2020-08-15

No release notes.

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## More apps by 睿 王

- [Fingers Meet](https://appshunter.io/ios/app/fingers-meet/id1533383508)

All apps by 睿 王: https://appshunter.io/developer/1524187290

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*