# Vault vs Mailbux

The clearest difference is iOS requirement: Mailbux at 15.1 against Vault's 27.0. 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.

Vault ships an update weekly, Mailbux every 5 days. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Vault | Mailbux |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mailbux/id6755738754/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | — | Free |
| Size | 81 MB | 24 MB |
| Requires iOS | 27.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bad Bundle Limited](https://appshunter.io/developer/1782972695) | [CloudWish LLC](https://appshunter.io/developer/1778325497) |

## What reviewers say

### Vault

[App page](https://appshunter.io/ios/app/vault-open-source-backup/id6738931366)

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

**In-app purchases:** none


### Mailbux

[App page](https://appshunter.io/ios/app/mailbux/id6755738754)

A fast, secure, and beautifully designed email client for managing multiple accounts. It offers free business email hosting with professional features like custom domains, contacts, calendar, and cloud storage.

**Highlights:** Free business email hosting, Unified inbox for multiple accounts, Real-time notifications, Powerful search functionality, Customizable folders and labels, Seamless cross-device sync

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

**In-app purchases:** none


## Frequently asked questions

### Is Vault free?

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

### Is Mailbux free?

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

### Do Vault or Mailbux have ads?

Neither Vault nor Mailbux shows ads.

### Which is updated more often, Vault or Mailbux?

Vault ships an update weekly, and Mailbux every 5 days. Most recently, Vault was updated on October 24, 2026 and Mailbux on October 20, 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.*