# Tether Supervision vs Blue Ledger

Tether Supervision and Blue Ledger are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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.

## The numbers

| Metric | Tether Supervision | Blue Ledger |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free |
| Size | 0 MB | 26 MB |
| Requires iOS | 17.2 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [CONTRAST COVERAGE TEXAS PLLC](https://appshunter.io/developer/1788849962) | [Pocket Retina, LLC](https://appshunter.io/developer/1880203365) |

## What reviewers say

### Tether Supervision

[App page](https://appshunter.io/ios/app/tether-supervision/id6740194394)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Tether Supervision free?

Tether Supervision is free to download, with no in-app purchases.

### Is Blue Ledger free?

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

### Do Tether Supervision or Blue Ledger have ads?

Neither Tether Supervision nor Blue Ledger shows ads.

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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.*