# PeriopSim vs SID by LayerJot

The clearest difference is review sentiment: SID by LayerJot at 80% against PeriopSim's 0%. SID by LayerJot also leads on rating (5.0 vs 3.3) and ratings volume (92 vs 4). PeriopSim's advantage is iOS requirement (13.0 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 3.3. That said, the two scores are not equally well evidenced: SID by LayerJot has 92 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of PeriopSim's written reviews are positive against 80% of SID by LayerJot's.

PeriopSim ships an update every 5 months, SID by LayerJot every 3 months. The most recent releases landed on September 9, 2026 and June 6, 2026 respectively.

## The numbers

| Metric | PeriopSim | SID by LayerJot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (4 ratings)](https://appshunter.io/ios/app/periopsim/id960363034/reviews) | **[5.0 (92 ratings)](https://appshunter.io/ios/app/sid-by-layerjot/id1624017506/reviews)** |
| Number of ratings | 4 | **92** |
| Positive reviews | 0.0% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 130 MB | 302 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPad, Mac | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Conquer Experience Inc](https://appshunter.io/developer/1551005418) | [LayerJot Inc](https://appshunter.io/developer/1444476448) |

## What reviewers say

### PeriopSim

[App page](https://appshunter.io/ios/app/periopsim/id960363034)

This tool allows operating room educators to train nurses and surgical technologists on surgical procedures. It offers safe practice, instrument recognition, and step-by-step preparation for unfamiliar surgeries through interactive video and timed challenges.

**Highlights:** Safe surgical skills practice, Instrument recognition training, Interactive real surgery videos, Step-by-step procedure preparation, Timed skill challenges, Leaderboard scoring

**Features:** Vision Pro support

**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 PeriopSim free?

PeriopSim 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, PeriopSim or SID by LayerJot?

SID by LayerJot is rated higher. PeriopSim averages 3.3 out of 5 from 4 ratings, while SID by LayerJot averages 5.0 from 92 ratings.

### Do PeriopSim or SID by LayerJot have ads?

Neither PeriopSim nor SID by LayerJot shows ads.

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

PeriopSim ships an update every 5 months, and SID by LayerJot every 3 months. Most recently, PeriopSim was updated on September 9, 2026 and SID by LayerJot on June 6, 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.*