# NAO vs Paratus

The clearest difference is update cadence: NAO at every 2 months against Paratus's every 7 months. NAO also leads on iOS requirement (6.1 vs 14.0). 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.

NAO ships an update every 2 months, Paratus every 7 months. The most recent releases landed on November 1, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | NAO | Paratus |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | — |
| Size | 4 MB | 70 MB |
| Requires iOS | **6.1** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [ANMCO(ASSOCIAZIONE NAZIONALE MEDICI CARDIOLOGI OSPEDALIERI)](https://appshunter.io/developer/933326997) | [A. Menarini Industrie Farmaceutiche Riunite S.R.L.](https://appshunter.io/developer/500109570) |

## What reviewers say

### NAO

[App page](https://appshunter.io/ios/app/nao/id916531979)

This medical app helps healthcare professionals determine the appropriate dosage and prescription for new oral anticoagulants (NOACs) like dabigatran, rivaroxaban, apixaban, and edoxaban. It focuses on adult patients with non-valvular atrial fibrillation and at least one risk factor for stroke.

**Highlights:** NOAC prescriber identification, Dosage calculation, Dabigatran, Rivaroxaban, Apixaban, Edoxaban, Adult patients with AFib, Stroke risk factor assessment

**Features:** macOS Compatibility

**In-app purchases:** none


### Paratus

[App page](https://appshunter.io/ios/app/paratus/id6449779457)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NAO free?

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

### Is Paratus free?

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

### Do NAO or Paratus have ads?

Neither NAO nor Paratus shows ads.

### Which is updated more often, NAO or Paratus?

NAO ships an update every 2 months, and Paratus every 7 months. Most recently, NAO was updated on November 1, 2026 and Paratus on October 19, 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.*