M1 Messenger vs STN UC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
M1 Messenger
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.
- SIP client with push notifications
- Walkie-Talkie mode (Push-To-Talk)
- Users Nearby discovery
- Family Locator
- PSTN/GSM calling
- IP PBX integration
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All-in-One M1 Messenger - calls to any PSTN or GSM numbers, Walkie-Talkie, SIP client and more. - SIP client with push notification feature. - Users Nearby — you can see users around you (up to a 100 km radius). Chat with people nearby and make new friends. - Family Locator - get location your family members or friends. - Push-To-Talk. Use this Walkie-Talkie mode in group and regular chats. - SIP equipment — connect you IP PBX (for example, Asterisk), call center or any IP phone or gateway to connect with any M1 user directly from your PBX, call center or IP phone.
STN UC
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.
- SIP-based softphone
- Wi-Fi or 4G/LTE calls
- Instant messaging
- Push notifications for calls
- Push notifications for messages
- Interworks with PortSIP PBX
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STN-UC is a SIP-based softphone for iPhone that uses Wi-Fi or 4G/LTE connection to make and receive calls and Instant Messages. Interworking with PortSIP PBX, STN-UC support push notification, which allows it receive calls and messages even it was force terminated.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | M1 Messenger | STN UC |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 79 MB | 54 MB |
| Age rating | 17+ | 4+ |
| Developer | Melliton | PortSIP Solutions, Inc. |
Customer experience
M1 Messenger
STN UC
In-app purchases
M1 Messenger
No in-app purchases
STN UC
No in-app purchases
