# General Surgery Instruments vs SID by LayerJot

The clearest difference is ads: SID by LayerJot at none against General Surgery Instruments's shown. SID by LayerJot also leads on update cadence (every 3 months vs every 27 months) and monetization model (free vs free with in-app purchases). General Surgery Instruments's advantage is review sentiment (100% vs 80%) and iOS requirement (13.0 vs 17.6). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.9 for General Surgery Instruments against 5.0 for SID by LayerJot. That said, the two scores are not equally well evidenced: SID by LayerJot has 92 ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 100% of General Surgery Instruments's written reviews are positive against 80% of SID by LayerJot's.

General Surgery Instruments ships an update every 27 months, SID by LayerJot every 3 months. The most recent releases landed on August 20, 2026 and June 6, 2026 respectively.

## The numbers

| Metric | General Surgery Instruments | SID by LayerJot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (8 ratings)](https://appshunter.io/ios/app/general-surgery-instruments/id1552025649/reviews) | **[5.0 (92 ratings)](https://appshunter.io/ios/app/sid-by-layerjot/id1624017506/reviews)** |
| Number of ratings | 8 | **92** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 27 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 302 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Roman Moiseev](https://appshunter.io/developer/1877504595) | [LayerJot Inc](https://appshunter.io/developer/1444476448) |

## What reviewers say

### General Surgery Instruments

[App page](https://appshunter.io/ios/app/general-surgery-instruments/id1552025649)

A visual reference for surgical tools, organized by function. Features over 300 high-quality images with descriptions and an interactive quiz mode to test knowledge. Designed for easy navigation and learning.

**Highlights:** 300+ high-quality images, Concise descriptions, Intuitive interface, Interactive 'Check Yourself' mode, Organized by practical use

**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 General Surgery Instruments free?

General Surgery Instruments 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, General Surgery Instruments or SID by LayerJot?

SID by LayerJot is rated higher. General Surgery Instruments averages 4.9 out of 5 from 8 ratings, while SID by LayerJot averages 5.0 from 92 ratings.

### Do General Surgery Instruments or SID by LayerJot have ads?

General Surgery Instruments shows ads; SID by LayerJot does not.

### Which is updated more often, General Surgery Instruments or SID by LayerJot?

General Surgery Instruments ships an update every 27 months, and SID by LayerJot every 3 months. Most recently, General Surgery Instruments was updated on August 20, 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.*