# Polynomial Regression vs Think in Numbers

The clearest difference is update cadence: Polynomial Regression at every 3 weeks against Think in Numbers's every 5 months. Polynomial Regression also leads on iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Polynomial Regression ships an update every 3 weeks, Think in Numbers every 5 months. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Polynomial Regression | Think in Numbers |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Size | 4 MB | 4 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuri Morozov](https://appshunter.io/developer/1582368813) | [OANA RINALDI](https://appshunter.io/developer/1709880614) |

## What reviewers say

### Polynomial Regression

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Think in Numbers

[App page](https://appshunter.io/ios/app/think-in-numbers/id6757310514)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Polynomial Regression free?

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

### Is Think in Numbers free?

Think in Numbers is free to download, with no in-app purchases.

### Do Polynomial Regression or Think in Numbers have ads?

Neither Polynomial Regression nor Think in Numbers shows ads.

### Which is updated more often, Polynomial Regression or Think in Numbers?

Polynomial Regression ships an update every 3 weeks, and Think in Numbers every 5 months. Most recently, Polynomial Regression was updated on October 25, 2026 and Think in Numbers on October 31, 2026.

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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.*