# OEI Sim vs qubeZERO by SKILLQUBE

The clearest difference is review sentiment: OEI Sim at 100% against qubeZERO by SKILLQUBE's 0%. OEI Sim also leads on rating (5.0 vs 3.0) and iOS requirement (14.1 vs 17.5). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OEI Sim holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 100% of OEI Sim's written reviews are positive against 0% of qubeZERO by SKILLQUBE's.

OEI Sim ships an update every 3 months, qubeZERO by SKILLQUBE every 2 months. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | OEI Sim | qubeZERO by SKILLQUBE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/oei-sim/id1309239396/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/qubezero-by-skillqube/id1548009097/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 47 MB | 140 MB |
| Requires iOS | **14.1** | 17.5 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Operative Experience Inc](https://appshunter.io/developer/1309239394) | [SKILLQUBE GmbH](https://appshunter.io/developer/1390516943) |

## What reviewers say

### OEI Sim

[App page](https://appshunter.io/ios/app/oei-sim/id1309239396)

This application allows instructors to remotely control patient simulators, adjusting vital signs, sounds, and physiological responses. It supports various simulators for tactical casualty care and birthing scenarios, providing detailed simulation management.

**Highlights:** Control simulator temperature and blood pressure, Adjust chest compression and pulse points, Manage ECG rhythms and lung sounds, Control heart and airway sounds, Log simulation activity, Real-time self-diagnostics

**Features:** macOS Compatibility

**In-app purchases:** none


### qubeZERO by SKILLQUBE

[App page](https://appshunter.io/ios/app/qubezero-by-skillqube/id1548009097)

This app simulates a patient monitor with ECG, CPR feedback, and defibrillator capabilities. It allows for realistic adjustment of vital signs during training sessions, replicating real-life scenarios for enhanced learning.

**Highlights:** Patient monitor simulation, 12-lead ECG with pacer, Real-time CPR feedback, AED/manual defibrillator, Realistic vital sign adjustment, Lifelike training scenarios

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

**In-app purchases:** none


## Frequently asked questions

### Is OEI Sim free?

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

### Is qubeZERO by SKILLQUBE free?

qubeZERO by SKILLQUBE is free to download, with no in-app purchases.

### Which has better reviews, OEI Sim or qubeZERO by SKILLQUBE?

OEI Sim is rated higher. OEI Sim averages 5.0 out of 5 from 4 ratings, while qubeZERO by SKILLQUBE averages 3.0 from 2 ratings.

### Do OEI Sim or qubeZERO by SKILLQUBE have ads?

Neither OEI Sim nor qubeZERO by SKILLQUBE shows ads.

### Which is updated more often, OEI Sim or qubeZERO by SKILLQUBE?

OEI Sim ships an update every 3 months, and qubeZERO by SKILLQUBE every 2 months. Most recently, OEI Sim was updated on October 6, 2026 and qubeZERO by SKILLQUBE on October 7, 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.*