# PSMailbox vs SimpleMail by WK

The clearest difference is ads: PSMailbox at none against SimpleMail by WK's shown. PSMailbox also leads on iOS requirement (14.2 vs 17.0). SimpleMail by WK's advantage is update cadence (every 2 weeks vs every 2 months). On price, 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.

PSMailbox ships an update every 2 months, SimpleMail by WK every 2 weeks. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | PSMailbox | SimpleMail by WK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (4 ratings)](https://appshunter.io/ios/app/psmailbox/id1441340249/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 42 MB | 4 MB |
| Requires iOS | **14.2** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Argonaut Quality Systems Inc.](https://appshunter.io/developer/1441225619) | [Wonkyoung Seo](https://appshunter.io/developer/6775065699) |

## What reviewers say

### PSMailbox

[App page](https://appshunter.io/ios/app/psmailbox/id1441340249)

Access your secure email, cloud storage, and calendar from a single application. Enjoy the full functionality of your PSMail.net account on your mobile devices.

**Highlights:** Secure email access, Cloud storage integration, Calendar management, Online account access, Mobile functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### SimpleMail by WK

[App page](https://appshunter.io/ios/app/simplemail-by-wk/id6783971542)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PSMailbox free?

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

### Is SimpleMail by WK free?

SimpleMail by WK is free to download, with no in-app purchases.

### Do PSMailbox or SimpleMail by WK have ads?

SimpleMail by WK shows ads; PSMailbox does not.

### Which is updated more often, PSMailbox or SimpleMail by WK?

PSMailbox ships an update every 2 months, and SimpleMail by WK every 2 weeks. Most recently, PSMailbox was updated on October 1, 2026 and SimpleMail by WK on October 2, 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.*