# OxiTemps vs O2 SOS

The clearest difference is update cadence: O2 SOS at every 2 months against OxiTemps's every 5 months. O2 SOS also leads on iOS requirement (8.2 vs 12.0). 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.

OxiTemps ships an update every 5 months, O2 SOS every 2 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | OxiTemps | O2 SOS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 8.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 31 MB | 57 MB |
| Requires iOS | 12.0 | **8.2** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [OXIGEN salud S.A.](https://appshunter.io/developer/1062842891) | [O2 Czech Republic a.s.](https://appshunter.io/developer/311143795) |

## What reviewers say

### OxiTemps

[App page](https://appshunter.io/ios/app/oxitemps/id1118870510)

**Features:** macOS Compatibility

**In-app purchases:** none


### O2 SOS

[App page](https://appshunter.io/ios/app/o2-sos/id1439373110)

This app connects volunteer medical professionals with emergency calls for cardiac arrest in their vicinity. It alerts registered users to nearby emergencies, allowing them to assist before professional services arrive. Upon accepting a call, the app provides navigation to the patient and informs dispatch and the caller of their arrival.

**Highlights:** Emergency alerts for cardiac arrest, Volunteer medical professional network, Navigation to patient location, Dispatch and caller notifications, First responder system integration

**In-app purchases:** none


## Frequently asked questions

### Is OxiTemps free?

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

### Is O2 SOS free?

O2 SOS is free to download, with no in-app purchases.

### Do OxiTemps or O2 SOS have ads?

Neither OxiTemps nor O2 SOS shows ads.

### Which is updated more often, OxiTemps or O2 SOS?

OxiTemps ships an update every 5 months, and O2 SOS every 2 months. Most recently, OxiTemps was updated on November 2, 2026 and O2 SOS on November 2, 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.*