# CHAM vs GreenEarth

The clearest difference is in-app purchases: CHAM at none against GreenEarth's 1. CHAM also leads on update cadence (fortnightly vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. GreenEarth sells 1 one-off in-app purchase. CHAM asks for nothing beyond the download.

CHAM ships an update fortnightly, GreenEarth every 6 weeks. The most recent releases landed on October 30, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | CHAM | GreenEarth |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Size | 30 MB | 56 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [EMCAN-TEC](https://appshunter.io/developer/1649090170) | [Joseph Emmanuel Deladem Kudjordji](https://appshunter.io/developer/6779929936) |

## What reviewers say

### CHAM

[App page](https://appshunter.io/ios/app/cham/id6747745346)

**Features:** macOS Compatibility

**In-app purchases:** none


### GreenEarth

[App page](https://appshunter.io/ios/app/greenearth-climate-habits/id6799393501)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GreenEarth Plus Unlock | $0.99 | one-time |


## Frequently asked questions

### Is CHAM free?

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

### Is GreenEarth free?

GreenEarth is free to download, with in-app purchases available.

### Do CHAM or GreenEarth have ads?

Neither CHAM nor GreenEarth shows ads.

### Which is updated more often, CHAM or GreenEarth?

CHAM ships an update fortnightly, and GreenEarth every 6 weeks. Most recently, CHAM was updated on October 30, 2026 and GreenEarth on November 7, 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.*