# PMM Client vs Axidian Key

The clearest difference is iOS requirement: PMM Client at 9.0 against Axidian Key's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PMM Client ships an update every 18 months, Axidian Key every 17 months. The most recent releases landed on September 13, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | PMM Client | Axidian Key |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/pmm-client/id477968584/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 17 months** |
| Monetization | Free | — |
| Size | 2 MB | 12 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fortra, LLC](https://appshunter.io/developer/1239848121) | [Axidian FZCO](https://appshunter.io/developer/1780792026) |

## What reviewers say

### PMM Client

[App page](https://appshunter.io/ios/app/pmm-client/id477968584)

Manage your quarantined emails directly from your iOS device. This application works with the Clearswift SECURE Email Gateway to provide convenient access to your email management.

**Highlights:** Manage quarantined email, iOS device compatibility, Works with Clearswift SECURE Email Gateway, Email security management

**Features:** macOS Compatibility

**In-app purchases:** none


### Axidian Key

[App page](https://appshunter.io/ios/app/axidian-key/id6738424456)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PMM Client free?

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

### Is Axidian Key free?

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

### Do PMM Client or Axidian Key have ads?

Neither PMM Client nor Axidian Key shows ads.

### Which is updated more often, PMM Client or Axidian Key?

PMM Client ships an update every 18 months, and Axidian Key every 17 months. Most recently, PMM Client was updated on September 13, 2026 and Axidian Key on September 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.*