# NCP Authenticator vs WhatChanged

The clearest difference is price: NCP Authenticator at Free against WhatChanged's $9.99. WhatChanged's advantage is update cadence (every 3 weeks vs every 25 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

NCP Authenticator is free to download; WhatChanged costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NCP Authenticator ships an update every 25 months, WhatChanged every 3 weeks. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | NCP Authenticator | WhatChanged |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 3 weeks** |
| Size | 18 MB | 31 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [N C P E GmbH Network Communications Products Engineering](https://appshunter.io/developer/1187926974) | [Iri You](https://appshunter.io/developer/1814472799) |

## What reviewers say

### NCP Authenticator

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

**In-app purchases:** none


### WhatChanged

[App page](https://appshunter.io/ios/app/whatchanged-folder-compare/id6759179141)

**Features:** 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 WhatChanged free?

WhatChanged costs $9.99, with no in-app purchases.

### Do NCP Authenticator or WhatChanged have ads?

Neither NCP Authenticator nor WhatChanged shows ads.

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

NCP Authenticator ships an update every 25 months, and WhatChanged every 3 weeks. Most recently, NCP Authenticator was updated on September 10, 2026 and WhatChanged on September 11, 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.*