# TCTMD vs The narnar app

The clearest difference is review sentiment: TCTMD at 86% against The narnar app's 0%. TCTMD also leads on device support (3 vs 1). The narnar app's advantage is rating (4.8 vs 4.0) and ads (none vs shown). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

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

The narnar app holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: The narnar app has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 86% of TCTMD's written reviews are positive against 0% of The narnar app's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 22, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | TCTMD | The narnar app |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/tctmd/id475249106/reviews) | **[4.8 (8 ratings)](https://appshunter.io/ios/app/the-narnar-app/id1338238999/reviews)** |
| Number of ratings | 1 | **8** |
| Positive reviews | **85.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Ad-supported | **Free** |
| Size | 30 MB | 13 MB |
| Requires iOS | 15.1 | **14.3** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 12+ | 12+ |
| Developer | [Cardiovascular Research Foundation](https://appshunter.io/developer/727420303) | [narnar, LLC](https://appshunter.io/developer/1058713005) |

## What reviewers say

### TCTMD

[App page](https://appshunter.io/ios/app/tctmd/id475249106)

Access cardiovascular news, journal summaries, conference coverage, and case studies. View slide presentations and videos in a mobile-friendly format.

**Highlights:** Daily news articles, Journal summaries, Conference coverage, Case study library, Slide presentation library, Video library

**Features:** macOS Compatibility

**In-app purchases:** none


### The narnar app

[App page](https://appshunter.io/ios/app/the-narnar-app/id1338238999)

This application aids researchers in processing and quantifying perfusion studies for contrast-enhanced ultrasound. It supports various organs and research protocols, offering real-time analysis of microvascular blood flow.

**Highlights:** Perfusion study processing, Quantification of microvascular blood flow, Supports various organs and research protocols, Automatic and manual image alignment, Real-time time-videointensity curve analysis, Parametric imaging of blood flow

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TCTMD free?

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

### Is The narnar app free?

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

### Which has better reviews, TCTMD or The narnar app?

The narnar app is rated higher. TCTMD averages 4.0 out of 5 from 1 ratings, while The narnar app averages 4.8 from 8 ratings.

### Do TCTMD or The narnar app have ads?

TCTMD shows ads; The narnar app does not.

### Which is updated more often, TCTMD or The narnar app?

TCTMD ships an update every 3 months, and The narnar app every 3 months. Most recently, TCTMD was updated on October 22, 2026 and The narnar app on October 16, 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.*