# ODE Solver + vs SymboliX

The clearest difference is in-app purchases: ODE Solver + at none against SymboliX's 1. ODE Solver + also leads on update cadence (weekly vs every 5 weeks). SymboliX's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. SymboliX sells 1 one-off in-app purchase. ODE Solver + asks for nothing beyond the download.

ODE Solver + ships an update weekly, SymboliX every 5 weeks. The most recent releases landed on September 25, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | ODE Solver + | SymboliX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/ode-solver-plus/id1549447510/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 5 weeks |
| Monetization | Ad-supported | **Free** |
| Size | 11 MB | 20 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takahiko Nakade](https://appshunter.io/developer/1513184888) | [光浩 李](https://appshunter.io/developer/1576352133) |

## What reviewers say

### ODE Solver +

[App page](https://appshunter.io/ios/app/ode-solver-plus/id1549447510)

This utility app calculates ordinary differential equations using the Runge-Kutta method. It offers a step width of 0.01 for its calculations.

**Highlights:** Ordinary differential equation calculation, Runge-Kutta method, Step width 0.01

**In-app purchases:** none


### SymboliX

[App page](https://appshunter.io/ios/app/symbolix/id6758012539)

This professional calculator offers advanced symbolic algebra, calculus, and equation solving capabilities. Visualize functions in 2D and 3D, and get detailed step-by-step solutions for complex mathematical problems. Save and manage your calculation history in notebook mode.

**Highlights:** Symbolic algebra, Calculus operations, Equation solving, Linear algebra, 2D/3D graphing, Step-by-step solutions, Notebook mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock AI Step-by-Step Solutions | $5.99 | one-time |


## Frequently asked questions

### Is ODE Solver + free?

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

### Is SymboliX free?

SymboliX is free to download, with in-app purchases available.

### Do ODE Solver + or SymboliX have ads?

ODE Solver + shows ads; SymboliX does not.

### Which is updated more often, ODE Solver + or SymboliX?

ODE Solver + ships an update weekly, and SymboliX every 5 weeks. Most recently, ODE Solver + was updated on September 25, 2026 and SymboliX on September 8, 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.*