# Hepatox vs NbN3

The clearest difference is price: NbN3 at Free against Hepatox's $3.99. NbN3 also leads on iOS requirement (12.0 vs 16.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

NbN3 is free to download; Hepatox costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Hepatox ships an update every 3 months, NbN3 every 2 months. The most recent releases landed on September 15, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Hepatox | NbN3 |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[4.1 (7 ratings)](https://appshunter.io/ios/app/nbn3/id927272449/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 38.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 1 MB | 22 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | +17 | +12 |
| Developer | [Pierre Chaillet](https://appshunter.io/developer/481949152) | [European College of Neuropsychopharmacology (ECNP)](https://appshunter.io/developer/687721422) |

## What reviewers say

### Hepatox

[App page](https://appshunter.io/ios/app/hepatox/id489738472)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Hepatox free?

Hepatox costs $3.99, with no in-app purchases.

### Is NbN3 free?

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

### Do Hepatox or NbN3 have ads?

Neither Hepatox nor NbN3 shows ads.

### Which is updated more often, Hepatox or NbN3?

Hepatox ships an update every 3 months, and NbN3 every 2 months. Most recently, Hepatox was updated on September 15, 2026 and NbN3 on September 10, 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.*