# Prairial vs Climate from Space

The clearest difference is price: Climate from Space at Free against Prairial's $0.99. Climate from Space also leads on iOS requirement (12.0 vs 16.0). Prairial's advantage is device support (3 vs 1). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

Climate from Space is free to download; Prairial costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Prairial ships an update every 6 months, Climate from Space every 5 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Prairial | Climate from Space |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/prairial/id697920083/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 months** |
| Monetization | Paid | **Free** |
| Size | 4 MB | 1.7 GB |
| Requires iOS | 16.0 | **12.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Laurent Rodier](https://appshunter.io/developer/697920086) | [ESA - European Space Agency](https://appshunter.io/developer/429660009) |

## What reviewers say

### Prairial

[App page](https://appshunter.io/ios/app/prairial/id697920083)

This utility converts between the standard Gregorian calendar and the historical French Revolution calendar. It offers a widget for the current date in the Revolutionary era and an Apple Watch companion with dual display options, including decimal time.

**Highlights:** Gregorian to French Revolution calendar conversion, Today screen widget, Apple Watch companion app, Decimal time display, Standard image representation of months

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Climate from Space

[App page](https://appshunter.io/ios/app/climate-from-space/id1061553589)

Explore 40 years of Earth's climate data from space on interactive globes and maps. Visualize changes in ocean temperature, ice sheets, and atmospheric carbon dioxide. Learn from project scientists through video interviews and richly illustrated text.

**Highlights:** Interactive animated globes, 40 years of climate data, Data viewer for climate variables, Video interviews with scientists, Illustrated text and satellite images, Globe and map views

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Prairial free?

Prairial costs $0.99, with no in-app purchases.

### Is Climate from Space free?

Climate from Space is free to download, with no in-app purchases.

### Do Prairial or Climate from Space have ads?

Neither Prairial nor Climate from Space shows ads.

### Which is updated more often, Prairial or Climate from Space?

Prairial ships an update every 6 months, and Climate from Space every 5 months. Most recently, Prairial was updated on October 23, 2026 and Climate from Space on October 24, 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.*