# NCP Authenticator vs AudioScope

The clearest difference is update cadence: AudioScope at every 4 days against NCP Authenticator's every 25 months. NCP Authenticator's advantage is iOS requirement (15.1 vs 17.6). 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.

NCP Authenticator ships an update every 25 months, AudioScope every 4 days. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | NCP Authenticator | AudioScope |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 4 days** |
| Size | 18 MB | 36 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [N C P E GmbH Network Communications Products Engineering](https://appshunter.io/developer/1187926974) | [Matthias Schelhaas](https://appshunter.io/developer/1869407712) |

## What reviewers say

### NCP Authenticator

[App page](https://appshunter.io/ios/app/ncp-authenticator/id1483468626)

**In-app purchases:** none


### AudioScope

[App page](https://appshunter.io/ios/app/audioscope/id6821110464)

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

**In-app purchases:** none


## Frequently asked questions

### Is NCP Authenticator free?

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

### Is AudioScope free?

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

### Do NCP Authenticator or AudioScope have ads?

Neither NCP Authenticator nor AudioScope shows ads.

### Which is updated more often, NCP Authenticator or AudioScope?

NCP Authenticator ships an update every 25 months, and AudioScope every 4 days. Most recently, NCP Authenticator was updated on October 29, 2026 and AudioScope on October 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*