# CF Event vs DIW Safety App

The clearest difference is update cadence: CF Event at every 2 weeks against DIW Safety App's every 2 months. CF Event also leads on iOS requirement (9.0 vs 13.0). 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.

CF Event ships an update every 2 weeks, DIW Safety App every 2 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | CF Event | DIW Safety App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Size | 6 MB | 26 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thailand Greenhouse Gas Management Organization](https://appshunter.io/developer/938564036) | [Department of Industrial Works](https://appshunter.io/developer/1559280980) |

## What reviewers say

### CF Event

[App page](https://appshunter.io/ios/app/cf-event/id1433863859)

**Features:** macOS Compatibility

**In-app purchases:** none


### DIW Safety App

[App page](https://appshunter.io/ios/app/diw-safety-app/id6443455294)

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

**In-app purchases:** none


## Frequently asked questions

### Is CF Event free?

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

### Is DIW Safety App free?

DIW Safety App is free to download, with no in-app purchases.

### Do CF Event or DIW Safety App have ads?

Neither CF Event nor DIW Safety App shows ads.

### Which is updated more often, CF Event or DIW Safety App?

CF Event ships an update every 2 weeks, and DIW Safety App every 2 months. Most recently, CF Event was updated on November 2, 2026 and DIW Safety App 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.*