# NbN3 vs QTc Calc

The clearest difference is iOS requirement: QTc Calc at 11.0 against NbN3's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | NbN3 | QTc Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (7 ratings)](https://appshunter.io/ios/app/nbn3/id927272449/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 42.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 24 MB | 9 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [European College of Neuropsychopharmacology (ECNP)](https://appshunter.io/developer/687721422) | [W G](https://appshunter.io/developer/1370996847) |

## What reviewers say

### NbN3

[App page](https://appshunter.io/ios/app/nbn3/id927272449)

This app provides a neuroscience-based nomenclature for psychotropic medications, reflecting current knowledge and aiding clinicians in making informed prescription decisions. It includes detailed information on pharmacology, mode of action, indications, efficacy, side effects, practical notes, and neurobiology.

**Highlights:** Neuroscience-based nomenclature, Pharmacology and mode of action, Approved indications, Efficacy and side effects, Practical clinical notes, Neurobiology details, Links to IUPHAR

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

**In-app purchases:** none


### QTc Calc

[App page](https://appshunter.io/ios/app/qtc-calc/id1573086457)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NbN3 free?

NbN3 is free to download, with no in-app purchases.

### Is QTc Calc free?

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

### Do NbN3 or QTc Calc have ads?

Neither NbN3 nor QTc Calc 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.*