# Mailbux vs Sema

The clearest difference is in-app purchases: Mailbux at none against Sema's 2. Mailbux also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sema sells 2 in-app purchases, starting at $4.99 per month. Mailbux asks for nothing beyond the download.

Mailbux ships an update every 6 days, Sema every 10 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Mailbux | Sema |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mailbux/id6755738754/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 10 days |
| Monetization | Free | — |
| Size | 26 MB | 78 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CloudWish LLC](https://appshunter.io/developer/1778325497) | [Vilde Vevatne](https://appshunter.io/developer/1807905751) |

## What reviewers say

### Mailbux

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

This app offers a fast, secure, and beautifully designed email client for managing your inbox. It provides free business email hosting with professional email addresses, contacts, calendar, and cloud storage. Enjoy a unified inbox, powerful search, and real-time notifications.

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

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

**In-app purchases:** none


### Sema

[App page](https://appshunter.io/ios/app/sema-private-ai-memory/id6807856356)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sema Pro | $4.99 | per month |
| Sema Pro | $24.99 | per year |


## Frequently asked questions

### Is Mailbux free?

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

### Is Sema free?

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

### Do Mailbux or Sema have ads?

Neither Mailbux nor Sema shows ads.

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

Mailbux ships an update every 6 days, and Sema every 10 days. Most recently, Mailbux was updated on October 30, 2026 and Sema on October 24, 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.*