# LogiCO2 vs 911sms

The clearest difference is update cadence: LogiCO2 at every 5 months against 911sms's every 11 months. 911sms's advantage is iOS requirement (15.6 vs 17.6). 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.

LogiCO2 ships an update every 5 months, 911sms every 11 months. The most recent releases landed on October 12, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | LogiCO2 | 911sms |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 11 months |
| Size | 3 MB | 21 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Logico2 International AB](https://appshunter.io/developer/1208875120) | [LifeGuard Global Inc.](https://appshunter.io/developer/1060701210) |

## What reviewers say

### LogiCO2

[App page](https://appshunter.io/ios/app/logico2-scout/id1078443336)

**In-app purchases:** none


### 911sms

[App page](https://appshunter.io/ios/app/911sms/id1181355084)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LogiCO2 free?

LogiCO2 is free to download, with no in-app purchases.

### Is 911sms free?

911sms is free to download, with no in-app purchases.

### Do LogiCO2 or 911sms have ads?

Neither LogiCO2 nor 911sms shows ads.

### Which is updated more often, LogiCO2 or 911sms?

LogiCO2 ships an update every 5 months, and 911sms every 11 months. Most recently, LogiCO2 was updated on October 12, 2026 and 911sms on October 26, 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.*