# Blue Ledger vs OpData

The clearest difference is in-app purchases: Blue Ledger at none against OpData's 2. OpData's advantage is update cadence (every 2 days vs every 3 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. OpData sells 2 in-app purchases, starting at $4.99 per month. Blue Ledger asks for nothing beyond the download.

Blue Ledger ships an update every 3 weeks, OpData every 2 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Blue Ledger | OpData |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/blue-ledger-surgical-case-log/id6760433422/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 26 MB | 64 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Pocket Retina, LLC](https://appshunter.io/developer/1880203365) | [ZEYNEP DAG](https://appshunter.io/developer/6805195889) |

## What reviewers say

### Blue Ledger

[App page](https://appshunter.io/ios/app/blue-ledger-surgical-case-log/id6760433422)

This app helps physicians and trainees document, organize, and learn from their surgical cases. It allows for detailed logging of procedures, tracking progress over time, and managing private media securely. The tool supports professional growth and reflection on clinical experiences.

**Highlights:** Log and organize surgical cases, Track procedures and case data, Analyze clinical experience trends, Manage private case media securely, Share cases to professional portfolio, Connect with colleagues, Receive activity notifications

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

**In-app purchases:** none


### OpData

[App page](https://appshunter.io/ios/app/opdata-drive/id6805195887)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpData Premium Monthly | $4.99 | per month |
| OpData Premium Annual | $29.99 | per year |


## Frequently asked questions

### Is Blue Ledger free?

Blue Ledger is free to download, with no in-app purchases.

### Is OpData free?

OpData is free to download, with in-app purchases available.

### Do Blue Ledger or OpData have ads?

Neither Blue Ledger nor OpData shows ads.

### Which is updated more often, Blue Ledger or OpData?

Blue Ledger ships an update every 3 weeks, and OpData every 2 days. Most recently, Blue Ledger was updated on October 24, 2026 and OpData on October 29, 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.*