# PSMailbox vs Atomic Mail

The clearest difference is review sentiment: Atomic Mail at 48% against PSMailbox's 0%. Atomic Mail also leads on rating (4.4 vs 3.5) and update cadence (every 2 weeks vs every 2 months). PSMailbox's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Atomic Mail sells 3 in-app purchases, starting at $5.99 per month. PSMailbox asks for nothing beyond the download.

Atomic Mail holds the better App Store score, 4.4 against 3.5. That said, the two scores are not equally well evidenced: Atomic Mail has 256 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of PSMailbox's written reviews are positive against 48% of Atomic Mail's.

PSMailbox ships an update every 2 months, Atomic Mail every 2 weeks. The most recent releases landed on September 14, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | PSMailbox | Atomic Mail |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (4 ratings)](https://appshunter.io/ios/app/psmailbox/id1441340249/reviews) | **[4.4 (256 ratings)](https://appshunter.io/ios/app/atomic-mail-private-email/id6749544617/reviews)** |
| Number of ratings | 4 | **256** |
| Positive reviews | 0.0% of reviews | **48.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Free** | Freemium |
| Size | 42 MB | 65 MB |
| Requires iOS | **14.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Argonaut Quality Systems Inc.](https://appshunter.io/developer/1441225619) | [Atomic Mail](https://appshunter.io/developer/1831027051) |

## 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


### Atomic Mail

[App page](https://appshunter.io/ios/app/atomic-mail-private-email/id6749544617)

This secure email application prioritizes user privacy with advanced encryption, zero-access architecture, and robust spam protection. It offers a fast, modern client for personal and business use, without trackers, profiling, or data selling.

**Highlights:** End-to-end encryption, Zero-access protection, Alias support, Password-protected messages, Self-destructing messages, AI spam & phishing protection

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Atomic Plus Monthly | $5.99 | per month |
| Atomic Plus Yearly | $59.90 | per year |
| 4-symbols | $90.00 | per year |


## Frequently asked questions

### Is PSMailbox free?

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

### Is Atomic Mail free?

Atomic Mail is free to download, with in-app purchases available.

### Which has better reviews, PSMailbox or Atomic Mail?

Atomic Mail is rated higher. PSMailbox averages 3.5 out of 5 from 4 ratings, while Atomic Mail averages 4.4 from 256 ratings.

### Do PSMailbox or Atomic Mail have ads?

Neither PSMailbox nor Atomic Mail shows ads.

### Which is updated more often, PSMailbox or Atomic Mail?

PSMailbox ships an update every 2 months, and Atomic Mail every 2 weeks. Most recently, PSMailbox was updated on September 14, 2026 and Atomic Mail 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.*