# ZERO CARBON TH vs FireRanger

The clearest difference is update cadence: FireRanger at daily against ZERO CARBON TH's every 3 weeks. 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.

ZERO CARBON TH ships an update every 3 weeks, FireRanger daily. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | ZERO CARBON TH | FireRanger |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 41 MB | 31 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Thailand Greenhouse Gas Management Organization](https://appshunter.io/developer/938564036) | [Chakrit Chotamonsak](https://appshunter.io/developer/1208089430) |

## What reviewers say

### ZERO CARBON TH

[App page](https://appshunter.io/ios/app/zero-carbon-th/id6468645997)

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

**In-app purchases:** none


### FireRanger

[App page](https://appshunter.io/ios/app/fireranger/id6761916182)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZERO CARBON TH free?

ZERO CARBON TH is free to download, with no in-app purchases.

### Is FireRanger free?

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

### Do ZERO CARBON TH or FireRanger have ads?

Neither ZERO CARBON TH nor FireRanger shows ads.

### Which is updated more often, ZERO CARBON TH or FireRanger?

ZERO CARBON TH ships an update every 3 weeks, and FireRanger daily. Most recently, ZERO CARBON TH was updated on October 9, 2026 and FireRanger on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*