# ORninja vs ODP Prep

The clearest difference is in-app purchases: ORninja at none against ODP Prep's 3. ORninja also leads on iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. ODP Prep sells 3 in-app purchases, starting at $6.99 per month. ORninja asks for nothing beyond the download.

## The numbers

| Metric | ORninja | ODP Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (25 ratings)](https://appshunter.io/ios/app/orninja/id1589161502/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 21.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Free | — |
| Size | 51 MB | 2 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Ninja Solutions Incorporated](https://appshunter.io/developer/1589161504) | [MD Shahariar Nazim Joy](https://appshunter.io/developer/1893961943) |

## What reviewers say

### ORninja

[App page](https://appshunter.io/ios/app/orninja/id1589161502)

This app provides a digital library of surgical instruments for training operating room support staff. It allows users to learn instrument names and functions at their own pace, and virtually assemble instrument trays for surgical procedures.

**Highlights:** Digital library of surgical instruments, Learn instrument names and functions, Virtual instrument tray assembly, Self-paced learning, Training for OR support staff

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

**In-app purchases:** none


### ODP Prep

[App page](https://appshunter.io/ios/app/odp-prep/id6793064871)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $6.99 | per month |
| Yearly Premium | $19.99 | per year |
| Lifetime Access | $34.99 | one-time |


## Frequently asked questions

### Is ORninja free?

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

### Is ODP Prep free?

ODP Prep is free to download, with in-app purchases available.

### Do ORninja or ODP Prep have ads?

Neither ORninja nor ODP Prep shows ads.

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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.*