# AORN eBooks vs SID by LayerJot

The clearest difference is review sentiment: SID by LayerJot at 80% against AORN eBooks's 0%. SID by LayerJot also leads on rating (5.0 vs 2.0) and ratings volume (92 vs 12). AORN eBooks's advantage is iOS requirement (15.0 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

SID by LayerJot holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: SID by LayerJot has 92 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 0% of AORN eBooks's written reviews are positive against 80% of SID by LayerJot's.

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on October 11, 2026.

## The numbers

| Metric | AORN eBooks | SID by LayerJot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (12 ratings)](https://appshunter.io/ios/app/aorn-ebooks/id828332966/reviews) | **[5.0 (92 ratings)](https://appshunter.io/ios/app/sid-by-layerjot/id1624017506/reviews)** |
| Number of ratings | 12 | **92** |
| Positive reviews | 0.0% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | Free |
| Size | 42 MB | 302 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Association of periOperative Registered Nurses (AORN)](https://appshunter.io/developer/828332969) | [LayerJot Inc](https://appshunter.io/developer/1444476448) |

## What reviewers say

### AORN eBooks

[App page](https://appshunter.io/ios/app/aorn-ebooks/id828332966)

Access and read essential perioperative nursing practice guides and curriculum materials. Purchase and download eBooks from the AORN website to enhance your knowledge and skills in patient and staff safety within surgical care.

**Highlights:** Read AORN eBooks, Access Guidelines for Perioperative Practice, Study Core Curriculum for RN First Assistant, Purchase eBooks via AORN website, Evidence-based practice resources

**Features:** macOS Compatibility

**In-app purchases:** none


### SID by LayerJot

[App page](https://appshunter.io/ios/app/sid-by-layerjot/id1624017506)

Quickly identify surgical instruments using AI-powered scanning or a vast catalog. Access detailed information, including IFUs and descriptions, to enhance accuracy in medical settings.

**Highlights:** AI visual instrument identification, Barcode and SKU scanning, Extensive instrument catalog (3.5M+ items), Detailed instrument descriptions, Integrated IFUs (Instructions for Use), High-resolution images

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AORN eBooks free?

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

### Is SID by LayerJot free?

SID by LayerJot is free to download, with no in-app purchases.

### Which has better reviews, AORN eBooks or SID by LayerJot?

SID by LayerJot is rated higher. AORN eBooks averages 2.0 out of 5 from 12 ratings, while SID by LayerJot averages 5.0 from 92 ratings.

### Do AORN eBooks or SID by LayerJot have ads?

Neither AORN eBooks nor SID by LayerJot shows ads.

### Which is updated more often, AORN eBooks or SID by LayerJot?

AORN eBooks ships an update every 3 months, and SID by LayerJot every 3 months. Most recently, AORN eBooks was updated on October 11, 2026 and SID by LayerJot on October 11, 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.*