# Zero Carbon vs Carbon365

The clearest difference is iOS requirement: Zero Carbon at 11.0 against Carbon365's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Zero Carbon | Carbon365 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 22 MB | 39 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TheTowerTech](https://appshunter.io/developer/1259751444) | [Expert 365 Pty Ltd](https://appshunter.io/developer/1330538819) |

## What reviewers say

### Zero Carbon

[App page](https://appshunter.io/ios/app/zero-carbon-connect/id6447286723)

**Features:** macOS Compatibility

**In-app purchases:** none


### Carbon365

[App page](https://appshunter.io/ios/app/carbon365/id6462082184)

**In-app purchases:** none


## Frequently asked questions

### Is Zero Carbon free?

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

### Is Carbon365 free?

Carbon365 is free to download, with no in-app purchases.

### Do Zero Carbon or Carbon365 have ads?

Neither Zero Carbon nor Carbon365 shows ads.

### Which is updated more often, Zero Carbon or Carbon365?

Zero Carbon ships an update monthly, and Carbon365 monthly. Most recently, Zero Carbon was updated on October 25, 2026 and Carbon365 on October 27, 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.*