# Slopes vs SwatSafe

The clearest difference is update cadence: SwatSafe at monthly against Slopes's every 2 months. SwatSafe also leads on iOS requirement (13.0 vs 15.0). 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, SwatSafe monthly. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Slopes | SwatSafe |
| --- | --- | --- |
| 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 | **Monthly** |
| Monetization | Free | — |
| Size | 21 MB | 23 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tim Lucas](https://appshunter.io/developer/1136916670) | [Swarthmore College](https://appshunter.io/developer/1588104893) |

## 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


### SwatSafe

[App page](https://appshunter.io/ios/app/swatsafe/id6469635027)

**In-app purchases:** none


## Frequently asked questions

### Is Slopes free?

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

### Is SwatSafe free?

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

### Do Slopes or SwatSafe have ads?

Neither Slopes nor SwatSafe shows ads.

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

Slopes ships an update every 2 months, and SwatSafe monthly. Most recently, Slopes was updated on October 24, 2026 and SwatSafe on October 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.*