# Trigonometry and functions vs Polynomial Regression

The clearest difference is price: Polynomial Regression at Free against Trigonometry and functions's $3.99. Polynomial Regression also leads on iOS requirement (15.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Polynomial Regression is free to download; Trigonometry and functions costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Trigonometry and functions | Polynomial Regression |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 1 MB | 4 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gomathy Shankaran](https://appshunter.io/developer/503956143) | [Yuri Morozov](https://appshunter.io/developer/1582368813) |

## What reviewers say

### Trigonometry and functions

[App page](https://appshunter.io/ios/app/trigonometry-and-functions/id6739970869)

**Features:** Vision Pro support

**In-app purchases:** none


### Polynomial Regression

[App page](https://appshunter.io/ios/app/polynomial-regression/id6741364702)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trigonometry and functions free?

Trigonometry and functions costs $3.99, with no in-app purchases.

### Is Polynomial Regression free?

Polynomial Regression is free to download, with no in-app purchases.

### Do Trigonometry and functions or Polynomial Regression have ads?

Neither Trigonometry and functions nor Polynomial Regression shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*