# AORN Expo vs CNOR Test Prep & Study Guide

The clearest difference is review sentiment: AORN Expo at 65% against CNOR Test Prep & Study Guide's 0%. AORN Expo also leads on rating (4.8 vs 4.3) and in-app purchases (none vs 3). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CNOR Test Prep & Study Guide sells 3 in-app purchases, starting at $9.99 per month. AORN Expo asks for nothing beyond the download.

AORN Expo holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: AORN Expo has 886 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 65% of AORN Expo's written reviews are positive against 0% of CNOR Test Prep & Study Guide's.

AORN Expo ships an update every 4 months, CNOR Test Prep & Study Guide every 9 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | AORN Expo | CNOR Test Prep & Study Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (886 ratings)](https://appshunter.io/ios/app/aorn-expo/id1348030422/reviews)** | [4.3 (8 ratings)](https://appshunter.io/ios/app/cnor-test-prep-and-study-guide/id1594152923/reviews) |
| Number of ratings | **886** | 8 |
| Positive reviews | **65.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 80 MB | 7 MB |
| Requires iOS | 15.5 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Association of periOperative Registered Nurses (AORN)](https://appshunter.io/developer/828332969) | [FLUENT AAC TECHNOLOGY S.R.L.](https://appshunter.io/developer/1547000580) |

## What reviewers say

### AORN Expo

[App page](https://appshunter.io/ios/app/aorn-expo/id1348030422)

Access presentations, exhibitor data, and posters for annual conferences. Connect with other attendees, take notes on slides, and draw directly on presentation materials within the event apps.

**Highlights:** Access conference presentations, View exhibitor data, Browse posters, Connect with attendees, Take notes on slides, Draw on presentation slides

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

**In-app purchases:** none

**What reviewers like**

- 👍 User friendly
- 🚀 Helpful for networking and sharing information
- 🚀 Useful for accessing presentations and evaluations

**What reviewers complain about**

- 🐛 Submitting evaluations is not intuitive
- 🐛 Frequent logout issues
- 🐛 Glitches with audio and presentation access

**Reported bugs**

- Frequent logout issues
- Compatibility issues with older devices

**Requested features**

- Ability to access evaluations directly from session information
- Option to add sessions to personal calendar
- Easier navigation and fewer steps to complete tasks


### CNOR Test Prep & Study Guide

[App page](https://appshunter.io/ios/app/cnor-test-prep-and-study-guide/id1594152923)

Prepare for the CNOR certification exam with over 3000 practice questions, flashcards, and realistic scenarios. Master all key exam areas to boost your knowledge and skills for perioperative nursing.

**Highlights:** 3000+ exam-like questions, 1000+ flashcards, Multiple practice tests, Real-life scenarios, Covers all CNOR exam areas, Progress tracking

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Premium | $9.99 | per month |
| 1 Month Premium | $24.99 | per month |
| Lifetime Access | $99.99 | one-time |


## Frequently asked questions

### Is AORN Expo free?

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

### Is CNOR Test Prep & Study Guide free?

CNOR Test Prep & Study Guide is free to download, with in-app purchases available.

### Which has better reviews, AORN Expo or CNOR Test Prep & Study Guide?

AORN Expo is rated higher. AORN Expo averages 4.8 out of 5 from 886 ratings, while CNOR Test Prep & Study Guide averages 4.3 from 8 ratings.

### Do AORN Expo or CNOR Test Prep & Study Guide have ads?

Neither AORN Expo nor CNOR Test Prep & Study Guide shows ads.

### Which is updated more often, AORN Expo or CNOR Test Prep & Study Guide?

AORN Expo ships an update every 4 months, and CNOR Test Prep & Study Guide every 9 months. Most recently, AORN Expo was updated on October 24, 2026 and CNOR Test Prep & Study Guide on October 24, 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.*