# MessageDesk vs OS3

The clearest difference is in-app purchases: MessageDesk at none against OS3's 1. MessageDesk also leads on iOS requirement (13.0.0 vs 18.0). OS3's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. OS3 sells 1 in-app purchase, starting at $12.99 per month. MessageDesk asks for nothing beyond the download.

MessageDesk ships an update every 3 weeks, OS3 monthly. The most recent releases landed on September 30, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | MessageDesk | OS3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (17 ratings)](https://appshunter.io/ios/app/messagedesk/id1528242471/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Ad-supported | — |
| Size | 76 MB | 4 MB |
| Requires iOS | **13.0.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Alderwood Labs Inc.](https://appshunter.io/developer/1563041278) | [QR LLC](https://appshunter.io/developer/1820066581) |

## What reviewers say

### MessageDesk

[App page](https://appshunter.io/ios/app/messagedesk/id1528242471)

Integrate SMS messaging into your business phone lines, including VoIP and landlines. This app offers a shared team inbox and broadcast capabilities for efficient communication. Features like scheduled messages, autoresponders, and templates help streamline SMS workflows.

**Highlights:** Add SMS to business phone numbers, Shared team SMS inbox, Mass text broadcasts, Scheduled text messages, Keyword-based autoresponders, Automation, Pre-saved text message templates

**Features:** macOS Compatibility

**In-app purchases:** none


### OS3

[App page](https://appshunter.io/ios/app/os3/id6760365662)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OS3 Pro | $12.99 | per month |


## Frequently asked questions

### Is MessageDesk free?

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

### Is OS3 free?

OS3 is free to download, with in-app purchases available.

### Do MessageDesk or OS3 have ads?

MessageDesk shows ads; OS3 does not.

### Which is updated more often, MessageDesk or OS3?

MessageDesk ships an update every 3 weeks, and OS3 monthly. Most recently, MessageDesk was updated on September 30, 2026 and OS3 on October 16, 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.*