# NbN3 vs SIRS Conference

The clearest difference is update cadence: SIRS Conference at every 6 days against NbN3's every 2 months. 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.

NbN3 ships an update every 2 months, SIRS Conference every 6 days. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | NbN3 | SIRS Conference |
| --- | --- | --- |
| 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 | **Every 6 days** |
| Monetization | Free | — |
| Size | 24 MB | 75 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [European College of Neuropsychopharmacology (ECNP)](https://appshunter.io/developer/687721422) | [THANIGAIVELAN MUTHU](https://appshunter.io/developer/1001157303) |

## 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


### SIRS Conference

[App page](https://appshunter.io/ios/app/sirs-conference/id6478138539)

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

**In-app purchases:** none


## Frequently asked questions

### Is NbN3 free?

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

### Is SIRS Conference free?

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

### Do NbN3 or SIRS Conference have ads?

Neither NbN3 nor SIRS Conference shows ads.

### Which is updated more often, NbN3 or SIRS Conference?

NbN3 ships an update every 2 months, and SIRS Conference every 6 days. Most recently, NbN3 was updated on November 1, 2026 and SIRS Conference on November 4, 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.*