# Slopes vs Thunderbolt24

The clearest difference is update cadence: Slopes at every 2 months against Thunderbolt24's every 5 months. 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.

Slopes ships an update every 2 months, Thunderbolt24 every 5 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Slopes | Thunderbolt24 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (41 ratings)](https://appshunter.io/ios/app/slopes-differential-equations/id1136920301/reviews)** | — |
| Number of ratings | **41** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free | — |
| Size | 21 MB | 205 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tim Lucas](https://appshunter.io/developer/1136916670) | [Nikhar Sachdeva](https://appshunter.io/developer/1877908716) |

## What reviewers say

### Slopes

[App page](https://appshunter.io/ios/app/slopes-differential-equations/id1136920301)

Explore graphical solutions to ordinary differential equations with this interactive educational tool. It offers six distinct activities, including plotting vector fields, solving systems of equations, and visualizing oscillations. Ideal for homework, classroom use, or research projects.

**Highlights:** Interactive ODE exploration, Vector field plotting, Systems of equations solver, Numerical approximation methods, Bifurcation diagram creation, Preloaded and custom examples

**Features:** macOS Compatibility

**In-app purchases:** none


### Thunderbolt24

[App page](https://appshunter.io/ios/app/thunderbolt24/id6761624532)

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

**In-app purchases:** none


## Frequently asked questions

### Is Slopes free?

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

### Is Thunderbolt24 free?

Thunderbolt24 is free to download, with no in-app purchases.

### Do Slopes or Thunderbolt24 have ads?

Neither Slopes nor Thunderbolt24 shows ads.

### Which is updated more often, Slopes or Thunderbolt24?

Slopes ships an update every 2 months, and Thunderbolt24 every 5 months. Most recently, Slopes was updated on October 24, 2026 and Thunderbolt24 on October 28, 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.*