# SOS Environment vs CBX

The clearest difference is iOS requirement: CBX at 11.0 against SOS Environment'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.

SOS Environment ships an update fortnightly, CBX weekly. The most recent releases landed on June 5, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | SOS Environment | CBX |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free | — |
| Size | 74 MB | 68 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vietnam Environmental Incident Response Center](https://appshunter.io/developer/1577527616) | [SECURITY SOLUTION AND SERVICES JOINT STOCK COMPANY](https://appshunter.io/developer/1639504106) |

## What reviewers say

### SOS Environment

[App page](https://appshunter.io/ios/app/sos-environment/id1577527614)

This app allows citizens to quickly report oil and chemical spills to relevant authorities. It also helps manage incident response capabilities and provides access to legal documents and training resources.

**Highlights:** Report oil and chemical spills, Locate incident positions, Provide safety guidance, Manage response capabilities database, Integrate with real-time weather data, Access legal library for oil and chemical regulations, Online training for incident response

**Features:** macOS Compatibility

**In-app purchases:** none


### CBX

[App page](https://appshunter.io/ios/app/cbx/id1639504104)

**In-app purchases:** none


## Frequently asked questions

### Is SOS Environment free?

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

### Is CBX free?

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

### Do SOS Environment or CBX have ads?

Neither SOS Environment nor CBX shows ads.

### Which is updated more often, SOS Environment or CBX?

SOS Environment ships an update fortnightly, and CBX weekly. Most recently, SOS Environment was updated on June 5, 2026 and CBX on May 16, 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.*