# OEI Sim Pro vs CPR+AED Basics

The clearest difference is in-app purchases: OEI Sim Pro at none against CPR+AED Basics's 1. CPR+AED Basics's advantage is update cadence (monthly vs every 23 months) and iOS requirement (12.0 vs 14.1). On price, ads and device support there is nothing between them.

Both are free to download. CPR+AED Basics sells 1 one-off in-app purchase. OEI Sim Pro asks for nothing beyond the download.

OEI Sim Pro ships an update every 23 months, CPR+AED Basics monthly. The most recent releases landed on October 11, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | OEI Sim Pro | CPR+AED Basics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 23 months | **Monthly** |
| Size | 112 MB | 318 MB |
| Requires iOS | 14.1 | **12.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 12+ |
| Developer | [Operative Experience Inc](https://appshunter.io/developer/1309239394) | [Attainment Company](https://appshunter.io/developer/403989333) |

## What reviewers say

### OEI Sim Pro

[App page](https://appshunter.io/ios/app/oei-sim-pro/id1576212260)

**Features:** macOS Compatibility

**In-app purchases:** none


### CPR+AED Basics

[App page](https://appshunter.io/ios/app/cpr-plus-aed-basics/id6444503005)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $99.99 | one-time |


## Frequently asked questions

### Is OEI Sim Pro free?

OEI Sim Pro is free to download, with no in-app purchases.

### Is CPR+AED Basics free?

CPR+AED Basics is free to download, with in-app purchases available.

### Do OEI Sim Pro or CPR+AED Basics have ads?

Neither OEI Sim Pro nor CPR+AED Basics shows ads.

### Which is updated more often, OEI Sim Pro or CPR+AED Basics?

OEI Sim Pro ships an update every 23 months, and CPR+AED Basics monthly. Most recently, OEI Sim Pro was updated on October 11, 2026 and CPR+AED Basics on October 3, 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.*