# CPR vs Siriraj AR CPR

The clearest difference is update cadence: Siriraj AR CPR at fortnightly against CPR's every 14 months. Siriraj AR CPR also leads on iOS requirement (15.0 vs 26.0). 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.

CPR ships an update every 14 months, Siriraj AR CPR fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | CPR | Siriraj AR CPR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Fortnightly** |
| Size | 5 MB | 420 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Richard Simonik](https://appshunter.io/developer/1707862972) | [Mahidol University International College](https://appshunter.io/developer/408186489) |

## What reviewers say

### CPR

[App page](https://appshunter.io/ios/app/cprhelper/id6743360940)

**Features:** macOS Compatibility

**In-app purchases:** none


### Siriraj AR CPR

[App page](https://appshunter.io/ios/app/siriraj-ar-cpr/id6752457603)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CPR free?

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

### Is Siriraj AR CPR free?

Siriraj AR CPR is free to download, with no in-app purchases.

### Do CPR or Siriraj AR CPR have ads?

Neither CPR nor Siriraj AR CPR shows ads.

### Which is updated more often, CPR or Siriraj AR CPR?

CPR ships an update every 14 months, and Siriraj AR CPR fortnightly. Most recently, CPR was updated on October 25, 2026 and Siriraj AR CPR on October 25, 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.*