# ODE vs Least Squares Curve Fit

The clearest difference is ads: Least Squares Curve Fit at none against ODE's shown. Least Squares Curve Fit also leads on update cadence (every 8 days vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

ODE ships an update every 5 weeks, Least Squares Curve Fit every 8 days. The most recent releases landed on October 25, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | ODE | Least Squares Curve Fit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/least-squares-curve-fit/id6443509668/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Monetization | — | Free |
| Size | 41 MB | 7 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) | [Yuri Morozov](https://appshunter.io/developer/1582368813) |

## What reviewers say

### ODE

[App page](https://appshunter.io/ios/app/ode-solver-integrator/id1619296705)

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

**In-app purchases:** none


### Least Squares Curve Fit

[App page](https://appshunter.io/ios/app/least-squares-curve-fit/id6443509668)

This app helps users find the best-fit curves for their data points using the Least Squares method. It supports various 2D and 3D function types, reports equations, and draws graphs. Data can be saved for later use.

**Highlights:** Least Squares Linear Regression Method, Multiple 2D and 3D function types, Equation reporting, Graph visualization, Data point storage, Best fit analysis, SVD calculation option

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ODE free?

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

### Is Least Squares Curve Fit free?

Least Squares Curve Fit is free to download, with no in-app purchases.

### Do ODE or Least Squares Curve Fit have ads?

ODE shows ads; Least Squares Curve Fit does not.

### Which is updated more often, ODE or Least Squares Curve Fit?

ODE ships an update every 5 weeks, and Least Squares Curve Fit every 8 days. Most recently, ODE was updated on October 25, 2026 and Least Squares Curve Fit on October 9, 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.*