# NbN3 vs USU PSY

The clearest difference is rating: USU PSY at 5.0 against NbN3's 4.1. NbN3's advantage is ratings volume (7 vs 1) and device support. On price, 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.

USU PSY holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: NbN3 has 7 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | NbN3 | USU PSY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (7 ratings)](https://appshunter.io/ios/app/nbn3/id927272449/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/usu-psy/id6758343728/reviews)** |
| Number of ratings | **7** | 1 |
| Positive reviews | 42.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 24 MB | 61 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 17+ | 17+ |
| Developer | [European College of Neuropsychopharmacology (ECNP)](https://appshunter.io/developer/687721422) | [Uniformed Services University of the Health Sciences](https://appshunter.io/developer/1068173989) |

## 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


### USU PSY

[App page](https://appshunter.io/ios/app/usu-psy/id6758343728)

**In-app purchases:** none


## Frequently asked questions

### Is NbN3 free?

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

### Is USU PSY free?

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

### Which has better reviews, NbN3 or USU PSY?

USU PSY is rated higher. NbN3 averages 4.1 out of 5 from 7 ratings, while USU PSY averages 5.0 from 1 ratings.

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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.*