# Coltrain vs The NTR

The clearest difference is iOS requirement: The NTR at 12.4 against Coltrain's 16.0. On price, rating, ratings volume and update cadence 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 — 5.0 for Coltrain against 4.9 for The NTR. Both are backed by a comparable volume of ratings — 17 and 10 respectively.

Coltrain ships an update monthly, The NTR every 2 weeks. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Coltrain | The NTR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (17 ratings)](https://appshunter.io/ios/app/coltrain/id1491315335/reviews)** | [4.9 (10 ratings)](https://appshunter.io/ios/app/the-ntr/id1603891329/reviews) |
| Number of ratings | **17** | 10 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 305 MB | 26 MB |
| Requires iOS | 16.0 | **12.4** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Cognition Med, LLC](https://appshunter.io/developer/1491315334) | [REGENVEN LLC](https://appshunter.io/developer/1603891331) |

## What reviewers say

### Coltrain

[App page](https://appshunter.io/ios/app/coltrain/id1491315335)

A secure, cloud-based messaging platform for healthcare professionals to enhance patient care and collaboration. It allows for case-based discussions and the secure sharing of photos, videos, and documents.

**Highlights:** HIPAA-compliant messaging, Secure cloud-based platform, Case-based discussions, Photo and document sharing, Peer-to-peer communication, Mobile device compatibility

**Features:** Vision Pro support

**In-app purchases:** none


### The NTR

[App page](https://appshunter.io/ios/app/the-ntr/id1603891329)

This medical app assists frontline personnel in locating appropriate hospitals for patient transfers. It allows searching for facilities based on distance, bed availability, and other critical factors. Users can also document transfer projects and collaborate with their teams.

**Highlights:** Search hospitals by distance and bed status, Take and share transfer project notes, Receive hospital status change notifications, View hospital transfer acceptance probability, Real-time bed status information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Coltrain free?

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

### Is The NTR free?

The NTR is free to download, with no in-app purchases.

### Which has better reviews, Coltrain or The NTR?

Coltrain is rated higher. Coltrain averages 5.0 out of 5 from 17 ratings, while The NTR averages 4.9 from 10 ratings.

### Do Coltrain or The NTR have ads?

Neither Coltrain nor The NTR shows ads.

### Which is updated more often, Coltrain or The NTR?

Coltrain ships an update monthly, and The NTR every 2 weeks. Most recently, Coltrain was updated on October 24, 2026 and The NTR on October 8, 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.*