# NEI Prescribe vs NbN3

The clearest difference is update cadence: NbN3 at every 2 months against NEI Prescribe's every 4 months. NEI Prescribe's advantage is review sentiment (53% vs 42%) and ratings volume (36 vs 7). On price, rating, ads and in-app purchases 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 — 4.0 for NEI Prescribe against 4.1 for NbN3. That said, the two scores are not equally well evidenced: NEI Prescribe has 36 ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 53% of NEI Prescribe's written reviews are positive against 42% of NbN3's.

NEI Prescribe ships an update every 4 months, NbN3 every 2 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | NEI Prescribe | NbN3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (36 ratings)](https://appshunter.io/ios/app/nei-prescribe/id911005926/reviews) | **[4.1 (7 ratings)](https://appshunter.io/ios/app/nbn3/id927272449/reviews)** |
| Number of ratings | **36** | 7 |
| Positive reviews | **52.6% of reviews** | 42.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 14 MB | 24 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Neuroscience Education Institute, LLC](https://appshunter.io/developer/691534956) | [European College of Neuropsychopharmacology (ECNP)](https://appshunter.io/developer/687721422) |

## What reviewers say

### NEI Prescribe

[App page](https://appshunter.io/ios/app/nei-prescribe/id911005926)

This point-of-care resource aids in medication selection for psychiatric drugs. It provides comprehensive prescribing information for over 150 medications for adults, children, and adolescents, with interactive filters for customized patient-specific lists.

**Highlights:** Full prescribing details for 140+ psychiatric drugs, Interactive medication filter, Search by drug name or diagnosis, Toggle between adult and pediatric libraries, Offline access to content, Always up to date

**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 NEI Prescribe free?

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

### Is NbN3 free?

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

### Which has better reviews, NEI Prescribe or NbN3?

NbN3 is rated higher. NEI Prescribe averages 4.0 out of 5 from 36 ratings, while NbN3 averages 4.1 from 7 ratings.

### Do NEI Prescribe or NbN3 have ads?

Neither NEI Prescribe nor NbN3 shows ads.

### Which is updated more often, NEI Prescribe or NbN3?

NEI Prescribe ships an update every 4 months, and NbN3 every 2 months. Most recently, NEI Prescribe was updated on November 1, 2026 and NbN3 on November 1, 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.*