# Climate Change Explorer vs HydroCrowd

The clearest difference is update cadence: HydroCrowd at every 3 months against Climate Change Explorer's every 50 months. HydroCrowd also leads on iOS requirement (12.0 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.

Climate Change Explorer ships an update every 50 months, HydroCrowd every 3 months. Both last shipped on May 16, 2026.

## The numbers

| Metric | Climate Change Explorer | HydroCrowd |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 50 months | **Every 3 months** |
| Size | 1017 MB | 61 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Historic Environment Scotland](https://appshunter.io/developer/1240194863) | [SPOTTERON GmbH](https://appshunter.io/developer/1378099707) |

## What reviewers say

### Climate Change Explorer

[App page](https://appshunter.io/ios/app/climate-change-explorer/id1588762276)

**Features:** macOS Compatibility

**In-app purchases:** none


### HydroCrowd

[App page](https://appshunter.io/ios/app/hydrocrowd/id6449194122)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Climate Change Explorer free?

Climate Change Explorer is free to download, with no in-app purchases.

### Is HydroCrowd free?

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

### Do Climate Change Explorer or HydroCrowd have ads?

Neither Climate Change Explorer nor HydroCrowd shows ads.

### Which is updated more often, Climate Change Explorer or HydroCrowd?

Climate Change Explorer ships an update every 50 months, and HydroCrowd every 3 months. Most recently, Climate Change Explorer was updated on May 16, 2026 and HydroCrowd on May 16, 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.*