# Plottron vs ODE Solver +

The clearest difference is rating: Plottron at 4.8 against ODE Solver +'s 3.7. Plottron also leads on ads (none vs shown) and monetization model (free vs ad-supported). ODE Solver +'s advantage is update cadence (weekly vs every 5 months). 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.

Plottron holds the better App Store score, 4.8 against 3.7. Both are backed by a comparable volume of ratings — 12 and 3 respectively.

Plottron ships an update every 5 months, ODE Solver + weekly. The most recent releases landed on September 14, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Plottron | ODE Solver + |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (12 ratings)](https://appshunter.io/ios/app/plottron/id1037723649/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/ode-solver-plus/id1549447510/reviews) |
| Number of ratings | **12** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | **Free** | Ad-supported |
| Size | 2 MB | 11 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Billy Lin](https://appshunter.io/developer/1037723648) | [Takahiko Nakade](https://appshunter.io/developer/1513184888) |

## What reviewers say

### Plottron

[App page](https://appshunter.io/ios/app/plottron/id1037723649)

This application offers advanced 2D and 3D graphing capabilities for various function types, alongside a comprehensive scientific calculator. It supports implicit graphing, complex number visualization, and symbolic differentiation. The calculator includes user-defined variables, live evaluation, and probability density functions.

**Highlights:** 2D and 3D graphing, Implicit graphing, Complex number visualization, Symbolic differentiation, User-defined variables and functions, Live evaluation, Calculation history

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Plottron free?

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

### Is ODE Solver + free?

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

### Which has better reviews, Plottron or ODE Solver +?

Plottron is rated higher. Plottron averages 4.8 out of 5 from 12 ratings, while ODE Solver + averages 3.7 from 3 ratings.

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

ODE Solver + shows ads; Plottron does not.

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

Plottron ships an update every 5 months, and ODE Solver + weekly. Most recently, Plottron was updated on September 14, 2026 and ODE Solver + on September 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.*