# MAS Directory vs Eye Surgery Log

MAS Directory and Eye Surgery Log are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 19, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | MAS Directory | Eye Surgery Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/eye-surgery-log/id1493641913/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | — | Free |
| Size | 17 MB | 17 MB |
| Requires iOS | 13.0 | 13 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mississippi State University Extension Service](https://appshunter.io/developer/580535523) | [S&S Retina, LLC](https://appshunter.io/developer/1669991362) |

## What reviewers say

### MAS Directory

[App page](https://appshunter.io/ios/app/mas-directory/id1130510777)

**Features:** macOS Compatibility

**In-app purchases:** none


### Eye Surgery Log

[App page](https://appshunter.io/ios/app/eye-surgery-log/id1493641913)

Digitally log and manage patient surgical cases for efficient patient care, billing, and research. Features a searchable format with drawing and note-taking capabilities, plus pre-populated common medical codes.

**Highlights:** Digital case logging, Searchable patient records, Drawing function, Note-taking, Pre-populated medical codes, Designed by retina specialists

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MAS Directory free?

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

### Is Eye Surgery Log free?

Eye Surgery Log is free to download, with no in-app purchases.

### Do MAS Directory or Eye Surgery Log have ads?

Neither MAS Directory nor Eye Surgery Log shows ads.

### Which is updated more often, MAS Directory or Eye Surgery Log?

MAS Directory ships an update every 3 months, and Eye Surgery Log every 3 months. Most recently, MAS Directory was updated on October 19, 2026 and Eye Surgery Log on October 21, 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.*