# KeyIdentity Authenticator vs Checkware 4

The clearest difference is update cadence: Checkware 4 at every 6 weeks against KeyIdentity Authenticator's every 8 months. KeyIdentity Authenticator's advantage is iOS requirement (9.0 vs 16.1). 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.

KeyIdentity Authenticator ships an update every 8 months, Checkware 4 every 6 weeks. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | KeyIdentity Authenticator | Checkware 4 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 weeks** |
| Size | 37 MB | 19 MB |
| Requires iOS | **9.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KeyIdentity GmbH](https://appshunter.io/developer/571941070) | [New Solutions GmbH](https://appshunter.io/developer/1126273236) |

## What reviewers say

### KeyIdentity Authenticator

[App page](https://appshunter.io/ios/app/keyidentity-authenticator/id1156019084)

**Features:** macOS Compatibility

**In-app purchases:** none


### Checkware 4

[App page](https://appshunter.io/ios/app/checkware-4/id1286629728)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KeyIdentity Authenticator free?

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

### Is Checkware 4 free?

Checkware 4 is free to download, with no in-app purchases.

### Do KeyIdentity Authenticator or Checkware 4 have ads?

Neither KeyIdentity Authenticator nor Checkware 4 shows ads.

### Which is updated more often, KeyIdentity Authenticator or Checkware 4?

KeyIdentity Authenticator ships an update every 8 months, and Checkware 4 every 6 weeks. Most recently, KeyIdentity Authenticator was updated on October 29, 2026 and Checkware 4 on October 26, 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.*