# M1 Messenger vs STN UC

The clearest difference is update cadence: M1 Messenger at every 3 weeks against STN UC's every 2 months. M1 Messenger also leads on iOS requirement (9.0 vs 11.0). On price, review sentiment, 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.

M1 Messenger ships an update every 3 weeks, STN UC every 2 months. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | M1 Messenger | STN UC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/m1-messenger/id1315569851/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 79 MB | 54 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Melliton](https://appshunter.io/developer/953108739) | [PortSIP Solutions, Inc.](https://appshunter.io/developer/426903821) |

## What reviewers say

### M1 Messenger

[App page](https://appshunter.io/ios/app/m1-messenger/id1315569851)

This app offers a versatile communication platform, combining SIP calling, walkie-talkie functionality, and location sharing. Connect with users nearby, track family locations, and integrate with IP PBX systems for broader calling capabilities.

**Highlights:** SIP client with push notifications, Walkie-Talkie mode (Push-To-Talk), Users Nearby discovery, Family Locator, PSTN/GSM calling, IP PBX integration

**Features:** macOS Compatibility

**In-app purchases:** none


### STN UC

[App page](https://appshunter.io/ios/app/stn-uc/id1569753155)

This application functions as a SIP-based softphone, enabling users to make and receive calls and instant messages over Wi-Fi or cellular data. It integrates with a specific PBX system to support push notifications for incoming calls and messages, even when the app is not actively running.

**Highlights:** SIP-based softphone, Wi-Fi or 4G/LTE calls, Instant messaging, Push notifications for calls, Push notifications for messages, Interworks with PortSIP PBX

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is M1 Messenger free?

M1 Messenger is free to download, with no in-app purchases.

### Is STN UC free?

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

### Do M1 Messenger or STN UC have ads?

Neither M1 Messenger nor STN UC shows ads.

### Which is updated more often, M1 Messenger or STN UC?

M1 Messenger ships an update every 3 weeks, and STN UC every 2 months. Most recently, M1 Messenger was updated on October 9, 2026 and STN UC on October 14, 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.*