# Double Lumen vs Block Buddy Pro

The clearest difference is review sentiment: Double Lumen at 94% against Block Buddy Pro's 20%. Double Lumen also leads on rating (5.0 vs 2.8) and ads (none vs shown). Block Buddy Pro's advantage is price (Free vs $4.99) and ratings volume (75 vs 8). On update cadence, in-app purchases and device support there is nothing between them.

Block Buddy Pro is free to download; Double Lumen costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Double Lumen holds the better App Store score, 5.0 against 2.8. That said, the two scores are not equally well evidenced: Block Buddy Pro has 75 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 94% of Double Lumen's written reviews are positive against 20% of Block Buddy Pro's.

Double Lumen ships an update every 3 months, Block Buddy Pro every 4 months. The most recent releases landed on October 2, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Double Lumen | Block Buddy Pro |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/double-lumen/id459376323/reviews)** | [2.8 (75 ratings)](https://appshunter.io/ios/app/block-buddy-pro/id1471006793/reviews) |
| Number of ratings | 8 | **75** |
| Positive reviews | **94.4% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 88 MB | 20 MB |
| Requires iOS | **9.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Crystal Clear Solutions](https://appshunter.io/developer/444062170) | [Block Buddy, LLC](https://appshunter.io/developer/1470651238) |

## What reviewers say

### Double Lumen

[App page](https://appshunter.io/ios/app/double-lumen/id459376323)

This application simulates the placement of double lumen endotracheal tubes and bronchial blockers. It provides real bronchoscopy images and interactive simulations to help users learn and confirm correct positioning in a stress-free environment.

**Highlights:** Double lumen and bronchial blocker simulation, Real bronchoscopy video images, Interactive placement and confirmation, Basic teaching program, 10 detailed simulations, Left-sided DLT positioning guidance

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

**In-app purchases:** none


### Block Buddy Pro

[App page](https://appshunter.io/ios/app/block-buddy-pro/id1471006793)

This app provides comprehensive guidance for ultrasound-guided peripheral nerve blocks, point-of-care ultrasound, and non-surgical pain management. It features narrated videos, detailed descriptions, illustrations, and ultrasound images to teach users how to perform these procedures effectively. Access lessons and videos offline on various devices for continuous learning.

**Highlights:** Narrated video lessons, Detailed descriptions and instructions, Comprehensive illustrations and sonograms, Offline access to content, Personalized note-taking, Drug comparison guide (Rx Guide)

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

**In-app purchases:** none


## Frequently asked questions

### Is Double Lumen free?

Double Lumen costs $4.99, with no in-app purchases.

### Is Block Buddy Pro free?

Block Buddy Pro is free to download, with no in-app purchases.

### Which has better reviews, Double Lumen or Block Buddy Pro?

Double Lumen is rated higher. Double Lumen averages 5.0 out of 5 from 8 ratings, while Block Buddy Pro averages 2.8 from 75 ratings.

### Do Double Lumen or Block Buddy Pro have ads?

Block Buddy Pro shows ads; Double Lumen does not.

### Which is updated more often, Double Lumen or Block Buddy Pro?

Double Lumen ships an update every 3 months, and Block Buddy Pro every 4 months. Most recently, Double Lumen was updated on October 2, 2026 and Block Buddy Pro on September 18, 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.*