# OEI Sim vs 生物记

OEI Sim and 生物记 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | OEI Sim | 生物记 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/oei-sim/id1309239396/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 47 MB | 94 MB |
| Requires iOS | **14.1** | 15.6 |
| Devices | iPad | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Operative Experience Inc](https://appshunter.io/developer/1309239394) | [北京微普科创科技有限公司](https://appshunter.io/developer/1073525273) |

## 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


### 生物记

[App page](https://appshunter.io/ios/app/id1468297340)

**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 生物记 free?

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

### Do OEI Sim or 生物记 have ads?

Neither OEI Sim nor 生物记 shows ads.

### Which is updated more often, OEI Sim or 生物记?

OEI Sim ships an update every 3 months, and 生物记 every 3 months. Most recently, OEI Sim was updated on October 24, 2026 and 生物记 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.*