# Global Warming Science & Model vs Optical Path

The clearest difference is price: Optical Path at $1.99 against Global Warming Science & Model's $19.99. Optical Path also leads on device support (3 vs 1). Global Warming Science & Model's advantage is iOS requirement (12.0.0 vs 15.6). On update cadence, ads and in-app purchases there is nothing between them.

Global Warming Science & Model costs $19.99 and Optical Path $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 12 months. The most recent releases landed on June 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Global Warming Science & Model | Optical Path |
| --- | --- | --- |
| Price | $19.99 | **$1.99** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/global-warming-science-and-model/id1441249328/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | Every 12 months |
| Monetization | Paid | — |
| Size | 112 MB | 6 MB |
| Requires iOS | **12.0.0** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Seeds Software](https://appshunter.io/developer/507836260) | [坤 冉](https://appshunter.io/developer/1759927074) |

## What reviewers say

### Global Warming Science & Model

[App page](https://appshunter.io/ios/app/global-warming-science-and-model/id1441249328)

Explore the science behind global warming and climate change through interactive simulations and an authentic climate model. This educational tool makes complex concepts accessible for students, offering insights into Earth's future climate.

**Highlights:** Interactive simulations of global warming concepts, Authentic atmospheric/ocean coupled global climate model, Content based on IPCC, NASA, and NOAA reports, Hands-on lessons and offline labs, Differentiated content for various learning levels, Suitable for grades 8 to college

**Features:** macOS Compatibility

**In-app purchases:** none


### Optical Path

[App page](https://appshunter.io/ios/app/optical-path/id6670541141)

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

**In-app purchases:** none


## Frequently asked questions

### Is Global Warming Science & Model free?

Global Warming Science & Model costs $19.99, with no in-app purchases.

### Is Optical Path free?

Optical Path costs $1.99, with no in-app purchases.

### Do Global Warming Science & Model or Optical Path have ads?

Neither Global Warming Science & Model nor Optical Path shows ads.

### Which is updated more often, Global Warming Science & Model or Optical Path?

Global Warming Science & Model ships an update every 12 months, and Optical Path every 12 months. Most recently, Global Warming Science & Model was updated on June 1, 2026 and Optical Path on October 3, 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.*