# MobiVisor Secure Exchange vs Postfach

The clearest difference is in-app purchases: MobiVisor Secure Exchange at none against Postfach's 1. MobiVisor Secure Exchange also leads on iOS requirement (13.0 vs 18.0). Postfach's advantage is update cadence (daily vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. Postfach sells 1 one-off in-app purchase. MobiVisor Secure Exchange asks for nothing beyond the download.

MobiVisor Secure Exchange ships an update monthly, Postfach daily. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | MobiVisor Secure Exchange | Postfach |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mobivisor-secure-exchange/id1558644528/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | Free | — |
| Size | 54 MB | 19 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Bor Software LLC](https://appshunter.io/developer/442399012) | [esense GmbH](https://appshunter.io/developer/1545555949) |

## What reviewers say

### MobiVisor Secure Exchange

[App page](https://appshunter.io/ios/app/mobivisor-secure-exchange/id1558644528)

Enhance your company's email security with an extension that adds advanced security settings to your existing service. Manage emails, calendars, contacts, and folders securely within the app, with features like remote deletion and secure attachment opening.

**Highlights:** Enhanced email security, Secure attachment opening, Remote account deletion, Email, calendar, contact management, Folder creation and management, Appointment and task scheduling

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

**In-app purchases:** none


### Postfach

[App page](https://appshunter.io/ios/app/postfach-private-mail/id6809901522)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Postfach Pro | $22.99 | one-time |


## Frequently asked questions

### Is MobiVisor Secure Exchange free?

MobiVisor Secure Exchange is free to download, with no in-app purchases.

### Is Postfach free?

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

### Do MobiVisor Secure Exchange or Postfach have ads?

Neither MobiVisor Secure Exchange nor Postfach shows ads.

### Which is updated more often, MobiVisor Secure Exchange or Postfach?

MobiVisor Secure Exchange ships an update monthly, and Postfach daily. Most recently, MobiVisor Secure Exchange was updated on October 19, 2026 and Postfach on October 13, 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.*