# O'Camping vs Net Zero Challenge

The clearest difference is ads: Net Zero Challenge at none against O'Camping's shown. O'Camping's advantage is iOS requirement (13.0 vs 15.1). On price, update cadence, 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.

O'Camping ships an update every 3 months, Net Zero Challenge every 2 months. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | O'Camping | Net Zero Challenge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 36 MB | 66 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Salah ABOUFARID](https://appshunter.io/developer/1436576273) | [Green Rewards Ltd](https://appshunter.io/developer/909021443) |

## What reviewers say

### O'Camping

[App page](https://appshunter.io/ios/app/ocamping/id1456533134)

**Features:** macOS Compatibility

**In-app purchases:** none


### Net Zero Challenge

[App page](https://appshunter.io/ios/app/net-zero-challenge/id1541830052)

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

**In-app purchases:** none


## Frequently asked questions

### Is O'Camping free?

O'Camping is free to download, with no in-app purchases.

### Is Net Zero Challenge free?

Net Zero Challenge is free to download, with no in-app purchases.

### Do O'Camping or Net Zero Challenge have ads?

O'Camping shows ads; Net Zero Challenge does not.

### Which is updated more often, O'Camping or Net Zero Challenge?

O'Camping ships an update every 3 months, and Net Zero Challenge every 2 months. Most recently, O'Camping was updated on October 18, 2026 and Net Zero Challenge on October 15, 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.*