# Promasys ePro vs ORReady

The clearest difference is update cadence: ORReady at every 11 days against Promasys ePro's every 15 months. Promasys ePro's advantage is iOS requirement (12.0 vs 15.0). 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.

Promasys ePro ships an update every 15 months, ORReady every 11 days. The most recent releases landed on October 26, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Promasys ePro | ORReady |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 11 days** |
| Size | 22 MB | 84 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Promasys BV](https://appshunter.io/developer/622544025) | [Willem Knijnenburg](https://appshunter.io/developer/1894516133) |

## What reviewers say

### Promasys ePro

[App page](https://appshunter.io/ios/app/promasys-epro/id1114024131)

**Features:** macOS Compatibility

**In-app purchases:** none


### ORReady

[App page](https://appshunter.io/ios/app/orready-learn-surgery/id6762521532)

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

**In-app purchases:** none


## Frequently asked questions

### Is Promasys ePro free?

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

### Is ORReady free?

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

### Do Promasys ePro or ORReady have ads?

Neither Promasys ePro nor ORReady shows ads.

### Which is updated more often, Promasys ePro or ORReady?

Promasys ePro ships an update every 15 months, and ORReady every 11 days. Most recently, Promasys ePro was updated on October 26, 2026 and ORReady on November 9, 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.*