# ODE Solver vs Polynomial Regression

The clearest difference is price: Polynomial Regression at Free against ODE Solver's $2.99. Polynomial Regression also leads on update cadence (every 3 weeks vs every 8 months). ODE Solver's advantage is iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Polynomial Regression is free to download; ODE Solver costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ODE Solver ships an update every 8 months, Polynomial Regression every 3 weeks. The most recent releases landed on November 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ODE Solver | Polynomial Regression |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Size | 4 MB | 4 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI](https://appshunter.io/developer/914295588) | [Yuri Morozov](https://appshunter.io/developer/1582368813) |

## What reviewers say

### ODE Solver

[App page](https://appshunter.io/ios/app/ode-solver/id982923512)

**Features:** macOS Compatibility, 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 ODE Solver free?

ODE Solver costs $2.99, with no in-app purchases.

### Is Polynomial Regression free?

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

### Do ODE Solver or Polynomial Regression have ads?

Neither ODE Solver nor Polynomial Regression shows ads.

### Which is updated more often, ODE Solver or Polynomial Regression?

ODE Solver ships an update every 8 months, and Polynomial Regression every 3 weeks. Most recently, ODE Solver was updated on November 6, 2026 and Polynomial Regression on October 25, 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.*